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Articles

Holy Grail or inflated expectations? The success and failure of integrated policy strategies

Pages 519-552 | Received 13 Jan 2017, Accepted 29 May 2017, Published online: 16 Jun 2017

ABSTRACT

Governments and international organizations increasingly pursue the development of integrated policy strategies to govern persistent societal problems that crosscut the boundaries of traditional jurisdictions. In spite of the rising popularity of such integrated strategies, little is known about their effects. Although it is generally assumed that integrated strategies result in better outcomes, the evidence base to support this claim is sparse. This is not to say that no attempts to study the relationship between integrated strategies and policy outcomes have been undertaken at all; this paper presents a research synthesis of the fragmented evidence base. Eligible studies are interpreted and discussed by using a heuristic that distinguishes between programmatic and political success and failure. Apart from synthesizing the impacts that integrated strategies have had, the paper reflects on associated explanatory conditions and methodological approaches that have been used. The review almost exclusively finds reports of failure and constraining conditions. At the same time, methodological approaches are found to be largely unconvincing and considerable research gaps remain. The paper, therefore, ends with a nuanced answer to the question of whether integrated strategies are worth pursuing and sets out various avenues for further research.

1. Introduction

Governments and international organizations have taken an increasing interest into developing integrated policy strategies (IPSs) in the new millennium (Bogdanor Citation2005; United Nations Citation2015; Candel and Biesbroek Citation2016; Cejudo and Michel Citation2017). Recognition that many of today’s most pressing societal problems crosscut the boundaries of traditional jurisdictions, the effects of (too) successful New Public Management reforms, and the subsequent emergence of holistic governing paradigms, such as joined-up-governance and whole-of-government, have, among other causes, made pursuing policy integration into the quest for the philosopher’s stone (Rhodes Citation2000; Peters Citation2015). IPSs are a particularly ambitious form of policy integration. Different from more sector-initiated types of policy integration, such as ‘mainstreaming’ (e.g. Uittenbroek Citation2014) or ‘cooperation’ and ‘coordination’ (e.g. Geerlings and Stead Citation2003),Footnote1 they are adopted to pursue a set of integrated goals by a polity as a whole (Metcalfe Citation1994; Candel and Biesbroek Citation2016). IPSs are here defined as explicit governmental attempts to address one or more crosscutting concerns – such as food insecurity, climate change, or homeland security – in a holistic manner and for that reason prescribe concerted policy-making efforts across sectors and, possibly, levels within a polity. Consequently, IPSs typically aim to align or even fundamentally redesign policy goals and instruments, and to strengthen and harness integrative capacities (Rayner and Howlett Citation2009b, Citation2009a). They are typically laid down in legislation, programmes and/or high-level agreements, which aim to set consequential governance processes in motion (Nordbeck and Steurer Citation2015). Following from these multi-level, -policy, and –goal dimensions, IPSs may be argued to lay down directions for meta-governing what have been termed ‘Type VIII’ or ‘complex multilevel policy’ mixes (Howlett and del Rio Citation2015).

In spite of the popularity of IPSs, surprisingly little is known about their effects on policy outcomes. Whereas the assumption that better integrated policy results in better outcomes is widespread among both scholars and policy-makers, it is not supported by a strong evidence base (Jordan and Lenschow Citation2010). This evidence gap at least partly results from considerable conceptual and methodological challenges in isolating the effects of policy in general, and of integrated policy in particular (Jordan and Lenschow Citation2010; Knill and Tosun Citation2012). This is not to say that nothing is known at all; this paper starts from the researcher’s observation that various scholars have attempted to assess the implementation and performance of integrated strategies across a range of governance systems and sectors (e.g. Drimie and Ruysenaar Citation2010; Vince Citation2015). At the same time, these attempts have remained fragmented and have not yet led to a more general scholarly debate about the impacts of IPSs. To allow for such a debate, this paper aims to strengthen the current state of knowledge by synthesizing and critically appraising the insights that previous studies have provided. The central question that the paper seeks to address is: what insights have previous studies provided into the impacts of integrated policy strategies on policy outcomes? The consequential synthesis may serve as a point of departure for future (comparative) studies of integrated strategies and associated outcomes.

The paper proceeds with establishing a framework that serves as basis for organizing the literature review. The framework conceptualizes IPSs’ impacts on policy outcomes in terms of ‘programmatic’ and ‘political’ success or failure (Bovens, ‘t Hart, and Peters Citation2001; McConnell Citation2010). In addition to reporting what existing studies have found regarding IPSs’ outcomes (i.e. their degree of success), the paper synthesizes associated explanatory conditions and discusses the methodological approaches that have been used. Categories of explanatory conditions were developed abductively, which is further explained under the methodological approach in Section 3. Section 4 presents the findings of the review. The paper ends with a discussion that critically appraises the current state of knowledge and provides an outlook for future research possibilities.

2. A policy success and failure heuristic to study outcomes

Policy outcomes are generally understood as the impacts that are produced by the implementation of policy outputs (the texts resulting from a decision-making process). A further distinction is made here by separating intermediate outcomes from eventual outcomes (cf. Knill and Tosun Citation2012, who make a slightly different distinction between outcomes and impacts). Intermediate outcomes are here understood as changes of institutions, policies, and political processes of or within a polity, that is, of the functioning of a political system itself. In this respect, the central question from the perspective of IPSs is whether and how a particular IPS’s objectives for changing the political system have been achieved (or of what sorts of unintended consequences have occurred). Ideally, such changes entail the alignment of efforts across a potentially broad range of governmental sectors and levels, involving changes in institutions (e.g. policy beliefs or policy-making structures and procedures), policies (goals, instruments, and policy frame), and political leadership (Peters Citation2015; Candel and Biesbroek Citation2016). The pursuit of one or more polity-overarching objectives is the defining characteristic of IPSs vis-à-vis other forms of policy integration in this respect.

Eventual outcomes are an integrated strategy’s impacts on society, that is, effects outside of the immediate political system. These are the types of effects that most policies are intended to generate ultimately, for example, reduced crime levels, strengthened adaptiveness to climate change, or strengthened food security. As hardly any of these outcomes are produced by the mere adoption of policy outputs, eventual outcomes are normally preceded by intermediate outcomes. Such an approach of outcomes closely resembles a top-down implementation perspective (Winter Citation2012). It should be noted, however, that whether and to what extent policies can produce their desired outcomes is contested (e.g. Mosse Citation2004). As a result, the assumed causal relationship between intermediate and eventual outcomes is an important empirical question in itself.

The effects of the adoption of an IPS on intermediate and eventual outcomes are here conceptualized in terms of policy success and failure. Research on the success and particularly the failure of public policies has a long tradition in the political sciences (e.g. Wolman Citation1981; Pressman and Wildavsky Citation1984; Bovens and ‘t Hart Citation1996). The fundamental questions that this stream of literature has aimed to address are: (1) how both failure and success of policies in achieving their goals can be conceptualized and empirically studied, and (2) what explains whether the outcomes of a policy are conceived as a success, failure, or something in between. It is beyond the scope of this paper to discuss the evolution of this whole body of literature (for excellent discussions, see: McConnell Citation2010; Howlett, Ramesh, and Wu Citation2015; Bovens and ‘t Hart Citation2016). Instead, the remainder of this section elaborates two distinct evaluation logics that are manifest in this stream of literature and that have been extensively elaborated in the work of Bovens, ‘t Hart and collaborators (Bovens and ‘t Hart Citation1996; Bovens, ‘t Hart, and Peters Citation2001; Bovens Citation2010; Bovens and ‘t Hart Citation2016). These logics can be used to study the effects of integrated strategies in different ways and are here used to cluster insights from the existing body of literature (see Section 3).

The two logics correspond with two fundamentally different ontologies regarding policies’ success and failure. A first approach to the success or failure of a policy contends that it is possible to objectively assess whether a policy’s objectives have been achieved. As a result, it is possible to draw relatively firm conclusions about whether a policy has been effective or efficient, and thus about whether it has been a success or a failure. Ideally, such an assessment would also include evidence about a policy’s unintended effects when weighing costs and benefits. This first approach to evaluating public policy is referred to as ‘programmatic evaluation’ (Bovens and ‘t Hart Citation1996) and can be summarized as pertaining ‘to the world of facts and social balance sheets: observable costs and benefits, original intentions and eventual outcomes. Its currency is “performance as measured”’ (Bovens and ‘t Hart Citation2016, 4). Scholars, governments and international organizations have developed many standardized ways of conducting such evaluations.

The second logic takes a social constructivist point of departure and approaches success and failure as being socially constructed in the public realm. Policies are argued to be subject to political contestations and are perceived and framed in different ways, depending on actors’ ideas and interests. Consequently, evaluation is not an objective or neutral endeavour, but a matter of interpretation, both by societal actors and the researcher. This second logic is referred to as ‘political evaluation’ and can be described as pertaining

to the world of impressions: lived experiences, stories, frames, counter-frames, heroes and villains. These are constructed in the way policies are being perceived and debated among their stakeholders, in the media and in the forums where policy-makers are held to account, such as citizen and institutional watchdogs, legislatures, courts. The currency of political evaluation is ‘reputation as conferred’. (Bovens and ‘t Hart Citation2016, 4)

Combining these two evaluation rationales with the distinction between intermediate and eventual outcomes allows making a classification of the different ways in which policy outcomes can be studied (). Although this heuristic could in principle be applied to any type of policy, it is here principally developed to cluster existing insights into the effects of integrated strategies.

Figure 1. Four perspectives on evaluating policy outcomes.

Figure 1. Four perspectives on evaluating policy outcomes.

Until recently, hardly any attention had been given to the success and failure of this emerging form of policy. This gap has only recently been put forward and partly addressed by Vince (Citation2015). By combining insights from the literatures on integrated policy approaches and policy success and failure, she raises various expectations about why many grand integrated strategies eventually fail, most of which she confirmed in a case study of Australia’s Oceans Policy (AOP; see Section 4). Vince uses McConnell’s (Citation2010) typology of process, programme, and political failure, which is different from the approach suggested by Bovens and ‘t Hart.Footnote2 Vince argues that process failure, which she interprets as a policy’s implementation within the political system, may result from policy layering (i.e. the resilience of old policy frameworks), insufficient cross-sectoral coordination and capacities, and organizational politics. She expects programme failure to stem from poor policy design, unachievable goals or timelines, and, again, from policy layering. Political failure is argued to be related to positive incentives for symbolic policy-making and blame avoidance strategies. Many of these issues correspond with constraining factors found in studies of (environmental/climate) policy integration in general. For example, Peters (Citation2015) mentions a long list of barriers stemming from risk avoidance, (new) public management, turf, partisan politics, beliefs, professionalism, and accountability, inter alia. The factors in this literature (e.g. also: Briassoulis Citation2004; Ross and Dovers Citation2008; Jordan and Lenschow Citation2010) are used to abductively categorize constraining but also enabling (e.g. Peters Citation2015) factors mentioned in the body of literature that is reviewed (see Section 3).

3. Methodological approach

The body of literature that this paper’s research synthesis (Section 4) is based on has been assembled and appraised by using systematic review methods. The advantage of systematic literature review methods over ‘ordinary’ literature discussions is that researcher bias can be limited and is made transparent (Petticrew and Roberts Citation2006; Gough, Oliver, and Thomas Citation2012). The specific approach applied in this paper is based on previous reviews by Biesbroek et al. (Citation2013) and Candel (Citation2014).

The data collection process is schematically depicted in . First, an initial assessment of potentially relevant literature was performed in both Scopus and Web of Science to develop a query (see Appendix 1 for keywords). The final query was run on 1 April 2016 and included studies published up to that date. After excluding duplicates, this resulted in an initial body of literature. In the next step, titles, keywords, and abstracts were loaded into Endnote and judged on the basis of four inclusion criteria: (1) the publication is in English; (2) it is published as scientific article, book (chapter), or expert report (e.g. some OECD reports are covered by Scopus); (3) the publication focuses on explicit efforts of governments or international organizations to address one or more crosscutting problems through an IPS; and (4) the publication assesses or evaluates the IPS’s outcomes. Because it was not always self-evident from a publication’s abstract whether it met the third and especially the fourth criteria, the criteria were applied relatively loosely in this round, meaning that publications were included if they potentially touched upon the outcomes of an IPS. In the final selection round, the inclusion criteria were applied to the full papers, resulting in a final body of 18 eligible publications. This body of literature was complemented with one additional publication that was considered eligible but that did not come out of the search, because it referred to ‘integration’ instead of ‘policy integration’ (i.e. Drimie and Ruysenaar Citation2010). provides an overview of all the publications included.

Figure 2. Data collection process.

Figure 2. Data collection process.

Table 1. Overview of included studies.

The focus on explicit governmental strategies implies that publications in which it is the researcher rather than the study object who defines a particular integration challenge (e.g. as in most integrative assessment studies), studies that focus on integrative principles or requirements that are not embedded in some sort of strategy (e.g. as in many, though not all, studies on environmental and climate policy integration), or studies that deal with the potential for integrated policy-making or planning fall outside the scope of this review. In addition, the focus on strategies that address specific problems implies that studies of sustainable development strategies were not included if they did not also touch upon consequent or underlying strategies that target more concrete problems or concerns.

The final body of literature was read in detail and relevant segments of the publications were put in a data extraction table (Appendix 2). This table presents the raw data (i.e. relevant characteristics of and insights from the publications) along various categories: (1) the crosscutting problem(s) that is/are addressed by the strategy and the strategy’s locus; (2) the key concept(s), focus, and methodological approach for studying the outcomes of an IPS; (3) (insights into) programmatic and political evaluations of the success and/or failure of an IPS; and (4) any other relevant arguments in the paper or notes about the paper. In the analysis phase, programmatic and political evaluations of whether IPSs had been successful were clustered along the four categories in . Additionally, insights about enabling and constraining factors were coded by using the qualitative data analysis program Atlas.ti. Codes were assigned in an abductive manner: similar factors were clustered and subsequently compared to the existing body of literature on policy integration (see Section 2) to assign labels. Thirdly, methodological approaches to studying outcomes were compared and clustered.

The approach chosen in this study has a number of limitations. First, the decision to only include English publications covered by Scopus and Web of Science means that potentially relevant studies published in other languages and outlets were not included. Second, although well-established terms, the query’s focus on ‘policy integration’ and ‘integrated policy’ implies that additional insights could be obtained from publications that cover similar sort of strategies without labelling them in terms of integration. As shows, virtually all eligible publications are about sustainable development, the environment, or food and nutrition security; all of which are fields that have a relatively long tradition of thinking in terms of integrative concepts, both amongst scholars and policy-makers. In addition, the focus on IPSs excludes studies on the impacts of other types or degrees of policy integration (cf. Jordan and Halpin Citation2006; Candel and Biesbroek Citation2016). Lastly, the abovementioned example of the paper of Drimie and Ruysenaar shows that even papers with an explicit integrated policy focus could fall outside the query’s results. To mitigate this risk, included papers were checked for potentially relevant studies that were missed. Although this did not lead to any further additions, it cannot be ruled out that alternative papers about the outcomes of IPSs exist.

4. Synthesis: the success and failure of IPSs

This section synthesizes the evidence base about the success and failure of IPSs from the publications listed in and Appendix 2. The first two sub-sections present the programmatic and political evaluations of IPSs’ outcomes, that is, to what extent they are considered a success or failure. The third sub-section reports the constraining and enabling factors that are found in the literature. The final sub-section elaborates the methodological approaches that were used. This section presents existing insights as emerging from the literature; a discussion follows in Section 5.

4.1. Insights from programmatic evaluations

The programmatic dimension of assessing success and failure proves much more common in the publications included than the political dimension. Whereas all studies performed some sort of programmatic evaluation (e.g. were initial objectives obtained?; with which measurable outcomes and impacts?), very few elaborated on the political dimension of evaluating integrated strategies (see Section 4.2).

The overall picture that emerges regarding the performance of the various integrated strategies is largely negative. Out of 18 studies, 10 evaluated the delivery of the specific integrated strategy/-ies they analysed as a failure (Hertin and Berkhout Citation2003; Begg and Gray Citation2004; Schout and Jordan Citation2005; Nilsson, Eklund, and Tyskeng Citation2009; Drimie and Ruysenaar Citation2010; Pollack and Hafner-Burton Citation2010; Steurer and Clar Citation2015; Vince Citation2015; Vince et al. Citation2015; Casado-Asensio and Steurer Citation2016), 2 studies concluded that the integrated strategies that were scrutinized were largely successful (Söderberg Citation2011; Black, Pérez-Escamilla, and Rao Citation2015), and 6 publications provided a mixed picture (Klepp and Forster Citation1985; Jordan and Lenschow Citation2000; Kivimaa and Mickwitz Citation2006; Mickwitz and Kivimaa Citation2007; Russel and Jordan Citation2010; Alves et al. Citation2013).

4.1.1. Intermediate outcomes

The overall negative assessment is largely due to the major implementation gaps that virtually all studies found. A most extreme example is provided by Begg and Gray (Citation2004), who show that the UK’s 1998 Integrated Transport White Paper was never implemented at all, and thus never proceeded beyond a paper reality. Instead, the government shifted away from its ‘joined-up philosophy’ towards sectoral environmental and transport policies, whereby the latter was primarily focused on supply side investment rather than demand management. Other studies report implementation shortcomings across (1) sectors, (2) governance levels, and/or (3) with respect to policy instrument mixes. Regarding the first, a common gap identified is that the implementation of integrated strategies is highly sectorized at best, and limited to only one or a few government sectors out of a whole range of targeted sectors at worst (Drimie and Ruysenaar Citation2010; Vince Citation2015; Casado-Asensio and Steurer Citation2016). For example, studies of EPI strategies found that it is often only the environmental ministries or directorate-generals that engage in genuine implementation, whereas implementation beyond the environmental sector is generally weak (Jordan and Lenschow Citation2000; Hertin and Berkhout Citation2003; Pollack and Hafner-Burton Citation2010; Russel and Jordan Citation2010).

Similarly, various authors found imperfect implementation across governance levels (Schout and Jordan Citation2005; Alves et al. Citation2013; Steurer and Clar Citation2015; Vince Citation2015; Casado-Asensio and Steurer Citation2016). A good example is the study of Nilsson, Eklund, and Tyskeng (Citation2009), who show that Swedish national waste policy, in which environmental concerns had been strongly integrated, hardly seemed to be integrated into local planning and decision-making practices, inter alia resulting in widespread construction of waste-incineration plants.

Thirdly, various studies report lagging implementation of policy instrument mixes or failures to adjust existing instruments (Nilsson, Eklund, and Tyskeng Citation2009; Russel and Jordan Citation2010). Regarding the latter, Mickwitz and Kivimaa (Citation2007) for example show that although environmental concerns were fairly well integrated into Finnish technology policy strategies, integration was less complete at the level of associated instruments, such as concrete technology programmes or the financing of R&D projects.

Despite a prevalence of accounts of poor implementation, various more positive implementation results were reported as well. Most straightforward in this respect is that although integrated strategies were generally not fully implemented, various partial instruments, structures, and working practices were put in place nonetheless. For example, Jordan and Lenschow (Citation2000) and Russel and Jordan (Citation2010) report that various frontrunner EU countries have made considerable progress in adopting EPI instruments and structures, while Klepp and Forster (Citation1985) show that various instruments targeted at changing Norwegian food production and consumption patterns were actually put into practice. In addition, Mickwitz and Kivimaa (Citation2007) found that there was a relatively good integration of environmental and innovation concerns in Finland, at least at the macro-level. Even though expectations about the impacts of such partial implementation are modest, they are argued to have the potential for putting a crosscutting problem or concern more firmly on macropolitical and subsystem agendas, and as such leave a legacy for future policy-making processes (Klepp and Forster Citation1985; Vince et al. Citation2015).

4.1.2. Eventual outcomes

Because most of the intended intermediate outcomes of the integrated strategies covered were not achieved it is not surprising that most studies do not report on the impacts on eventual policy outcomes; most IPSs never got to a point where they could have been expected to generate such impacts. This also shows in observed shortcomings of governments to monitor and evaluate implementation and consequent outcomes (Kivimaa and Mickwitz Citation2006; Drimie and Ruysenaar Citation2010; Alves et al. Citation2013; Casado-Asensio and Steurer Citation2016). Hereby, it should be noted that not all integrated strategies aim at having a societal impact. For example, EU Environmental Policy Integration (EPI) commitments, as laid down in the Commission EPI program, the 1997 Amsterdam Treaty, and the Cardiff Process, are primarily targeted at changing policy-making efforts (Schout and Jordan Citation2005; Pollack and Hafner-Burton Citation2010). Studies that do reflect on eventual outcomes provide diffuse but largely negative insights, whereby most researchers make the side-note that their analyses do not well-isolate the effects of integrated strategies from other factors (Section 4.4).

That said, Russel and Jordan (Citation2010) argue that the UK’s EPI system and associated strategies have not significantly improved the environment in their 15 years of being in existence. Casado-Asensio and Steurer (Citation2016) and Steurer and Clar (Citation2015) do find positive climate mitigation outcomes, but argue that these are probably not related to National Mitigation Strategies or Climate Policy Integration in Austrian housing policy respectively, as both types of integrated strategies were poorly implemented. Similarly, in discussing the effects of integrating environmental concerns into Finnish research policy, Kivimaa and Mickwitz (Citation2006) argue that eventual innovations result from a variety of driving forces, of which policy measures are only one. Innovating parties (self-)reported some beneficial environmental outcomes as a result of the policy, but did so selectively. In their evaluation of the Norwegian Nutrition and Food Policy, Klepp and Forster (Citation1985) find minor improvements in food consumption patterns (e.g. in terms of fat intake), but are rather critical about the scope of these improvements.

The only two studies that report mostly positive outcomes resulting from integrated strategies are a study of Black, Pérez-Escamilla, and Rao (Citation2015) on integrated nutrition and child development interventions and a study of Söderberg (Citation2011) on the Swedish bioenergy policy, which traditionally has a well-integrated environmental component. Black, Pérez-Escamilla, and Rao performed a review of existing studies of integrated nutrition and child development interventions. They found that most (quasi-)experiments of integrated strategies resulted in positive impacts on children’s cognitive, socioemotional, and/or motoric development. In one study that they reviewed the impacts on growth were limited, which they attribute to the poor implementation of the nutrition component of that particular intervention. Söderberg infers the success of the Swedish policy from the doubling of bioenergy production over the last two decades.

4.2. Insights from political evaluations

Strikingly, of the 18 studies included only Vince’s (Citation2015) evaluation of AOP focused explicitly on the political rationale of assessing success and failure. The other studies almost entirely restricted themselves to a programmatic evaluation rationale, although various authors indirectly provided some insights into the political construction of IPSs’ success and failure. The latter is the most obvious in studies that take widespread disappointment and sense of failure with respect to a particular IPS as point of departure for their analysis, such as is the case with the studies of Pollack and Hafner-Burton (Citation2010) and Schout and Jordan (Citation2005) on EU EPI strategies and of Steurer and Clar (Citation2015) on climate change mitigation in Austrian building policy. Conversely, in their analysis of the UK’s EPI strategies, Russel and Jordan (Citation2010) start from the OECD’s praise for the British system, and later nuance the euphoria through their own – programmatic – analysis of what has been achieved. Another observation authors have made is that some strategies, like the Norwegian Nutrition and Food Policy (Klepp and Forster Citation1985) and the Swedish environmental-friendly bioenergy policy (Söderberg Citation2011) have survived government turnover(s). From this, these authors infer that these strategies could rely on relatively broad political support.

As elaborated in Section 2, Vince (Citation2015) takes a more explicit interest in the political rationale of evaluating AOP. Vince shows that instead of struggling over different conceptions of the AOP’s performance, politicians hardly took an interest, positive or negative, in the strategy at all. Instead, they resorted to blame avoidance strategies by moving away from the holistic policy and its – nonetheless widely perceived – failure towards establishing sectoral policies, such as regional biodiversity plans. Because of a lack of public and political interest, attempts of NGOs, scientists and the Strategic Policy Institute to point at the AOP’s failure and to mobilize additional resources found little resonance and did not result in a revival of the strategy. Altogether, attempts to politicize AOP never really got off the ground due to a lack of issue-salience, and although the strategy’s initial development was easily agreed upon by the government and opposition, it died quietly eventually.

4.3. Factors that enable and constrain IPSs’ success

Virtually all studies included provide some reasons for why success and particularly failure have occurred in the cases they focus on. Most do so by pointing at a number of institutional or agency-centred factors that have either enabled or constrained the realization of an integrated strategy’s intended outcomes. Following from the almost exclusive focus on programmatic types of evaluation (Sections 4.1 and 4.2), most of the factors discussed in this sub-section have been used to explain the observed absence of outcomes that were intended. However, in principle many of them, such as turf wars and leadership, can also be used to account for political contestations and differences in social constructions of outcomes.

Because a majority of publications focused on failure, the number of constraining factors is higher. However, most of these factors can work both ways, that is, they may also have an enabling effect (see Section 5). Black, Pérez-Escamilla, and Rao (Citation2015) make this explicit by arguing that sufficient staff capacity, political will, cultural embeddedness of interventions, and appropriate monitoring and evaluation are vital to successful implementation; while a shortage of these factors may result in failure.

4.3.1. Constraining factors

The list of factors that have been mentioned as constraining is long; I here focus on six main categories (Section 3). First, integrated strategies may have been poorly designed to begin with. This can be because of various reasons. For example, a strategy may not sufficiently capture the complexity that characterizes a crosscutting policy problem. Drimie and Ruysenaar (Citation2010) show how this has been the case for South Africa’s Integrated Food Security Strategy, which emphasis on agricultural production and food availability obscures issues surrounding accessibility. Alternatively, failure can result from insufficient stakeholder input in the design phase, resulting in knowledge gaps or a lack of support in the implementation phase (Drimie and Ruysenaar Citation2010; Alves et al. Citation2013; Casado-Asensio and Steurer Citation2016). Furthermore, strategies may contain vague goals and instruments, resulting in unclarity for implementing actors (Kivimaa and Mickwitz Citation2006; Nilsson, Eklund, and Tyskeng Citation2009), or may layer these goals and strategies on top of existing sectoral policies, resulting in unclear or conflicting priorities (Vince Citation2015).

The last point relates to a second factor, which was emphasized in almost all studies: the persistence of sectoral priorities and a consequent lack of willingness or abilities to coordinate sectoral efforts. At some times, these coordination shortcomings ‘simply’ result from unclear roles and responsibilities, or a lack of ownership amongst policy sectors. The latter has for example been repeatedly shown for EPI strategies, which receive little priority outside of environmental departments (Jordan and Lenschow Citation2000; Russel and Jordan Citation2010; Casado-Asensio and Steurer Citation2016). At other times, they may follow from outright turf wars over jurisdictions and resources (Steurer and Clar Citation2015; Vince Citation2015).

Third, these same sort of coordination challenges occur across governance levels (Schout and Jordan Citation2005; Steurer and Clar Citation2015; Vince Citation2015; Casado-Asensio and Steurer Citation2016). This is most clear in federal systems and in the national implementation of EU strategies. Steurer and Clar (Citation2015), for example, show that strategies to integrate climate change concerns in Austrian building policies largely failed because the länder felt the strategy was forced upon them by the federal state. Such problems may also stem from ‘grand’ strategies’ failure to set out lower level mechanisms (Russel and Jordan Citation2010).

A fourth factor is lack of political will and prioritization. Various authors note that political actors lost interest soon after the adoption of an integrated strategy; to avoid blame for not achieving ambitious holistic objectives or because there are greater (political) incentives to creating new policies and institutions than implementing those that have been previously agreed upon (Begg and Gray Citation2004; Vince Citation2015). In addition, lagging interest may be caused by a change of leadership, lack of issue-salience, political crises, or the prevalence of other priorities, inter alia (Begg and Gray Citation2004; Schout and Jordan Citation2005). A common example of the last point is the prioritization of economic interests over environmental concerns (Nilsson, Eklund, and Tyskeng Citation2009). As a consequence of insufficient political backing, implementing actors have little latitude vis-à-vis sectors that need to change existing policy efforts.

Fifth, the effects of integrated strategies are reported to be hampered by limited institutional capacities and resources. At some times, hardly any capacities to implement a strategy have been allocated to begin with (Schout and Jordan Citation2005; Drimie and Ruysenaar Citation2010; Russel and Jordan Citation2010; Vince Citation2015). At other times, institutional changes may result in a sudden loss of capacities. For example, splitting the UK Department for Environment, Transport and the Regions (DETR) into separate transport and environmental ministries resulted in a loss of integrative capacities for implementing the British Integrated Transport White Paper (Begg and Gray Citation2004). A sub-dimension of this factor is lack of or exclusively sectoral evaluation and monitoring capacities, constraining policy learning (Kivimaa and Mickwitz Citation2006; Drimie and Ruysenaar Citation2010). In terms of resources, studies have reported the absence of dedicated funds, which, for example, prevent the development of joint projects and programmes across sectors or levels (Drimie and Ruysenaar Citation2010; Vince Citation2015).

The sixth factor concerns choices of policy instruments. Even if instruments are deployed to pursue the goals of integrated strategies, these are often ineffective (Klepp and Forster Citation1985; Nilsson, Eklund, and Tyskeng Citation2009; Pollack and Hafner-Burton Citation2010; Vince Citation2015). This ineffectiveness may result from inconsistent mixes, applying single instruments to multiple goals, or a lack of hard measures. The use of an instrument for different purposes is well-illustrated by Klepp and Forster (Citation1985), who attribute the disappointing effects of Norway’s Nutrition and Food Policy to the use of price subsidies for both health and agricultural productivity objectives, the latter of which came to dominate. Regarding the use of ‘soft’ versus ‘hard’ instruments, scholars have noted that exclusively relying on the former may be inadequate for getting sectors or governance levels to commit themselves to genuinely coordinating their policy efforts. While acknowledging the limitations of their approach, Pollack and Hafner-Burton (Citation2010) present a convincing case by comparing the European Commission’s 4th Action Program on Equal Opportunities for Men and Women in the Commission, which is focused on the recruitment, retention and treatment of qualified female officials, with earlier programmes. Whereas the use of soft instruments in previous programmes only resulted in minor improvements, the incorporation of hard instruments in the 4th programme effectuated quantifiable improvement across most directorate-generals.

4.3.2. Enabling factors

Compared to the long list of constraining factors, relatively few explicit enabling factors have been observed and discussed. Moreover, most of these enabling factors are discussed rather briefly and are often framed as the ‘mere’ opposite poles of the abovementioned constraints. Apart from the already mentioned ‘hard’ policy instruments (Pollack and Hafner-Burton Citation2010), these include well-functioning inter-sectoral coordination, monitoring mechanisms, stakeholder engagement, and the use of sector-specific knowledge (all mentioned in: Söderberg Citation2011).

The two enabling factors that were emphasized the most are strong structures and procedures and political backing. Regarding the first, authors have argued that strong and internally well-coordinated government systems, such as that of the United Kingdom, offer relatively better possibilities for integrated strategies to be successful (Jordan and Lenschow Citation2000; Söderberg Citation2011). The same applies to the use of more robust procedures, such as the European Commission’s impact assessment procedure that has been accompanied by relatively strict, centralized and enforced guidelines (Pollack and Hafner-Burton Citation2010). At the same time, these structures and procedures still require firm political backing, which has been argued to be indispensable for integrated strategies to be translated into concerted action (Jordan and Lenschow Citation2000) or, when the latter proves too ambitious, to at least put a crosscutting concern on sectoral agendas (Vince et al. Citation2015).

An interesting suggestion is made by Mickwitz and Kivimaa (Citation2007), who argue that a two-way mechanism of integration between sectors may be more successful than aiming to one-directionally address a crosscutting concern in multiple sectors. In their case, environmental concerns were integrated in Finnish technology and innovation strategies, while innovation concerns were integrated in environmental strategies. Such an approach could lead to strengthened ownership and commitment across sectors. At the same time, Mickwitz and Kivimaa find the same sort of implementation deficits in eventual instruments.

4.4. Methodological approaches used

Regarding the methodological approaches that have been used to study the outcomes of IPSs, a clear finding is that very few of the studies included are explicit about data collection and analysis processes; if any data has been collected to begin with. Nine publications have no methodological section or paragraph at all. Eight more studies mention the modes of data collection (and sometimes analysis), but do so rather summarily (Hertin and Berkhout Citation2003; Schout and Jordan Citation2005; Kivimaa and Mickwitz Citation2006; Nilsson, Eklund, and Tyskeng Citation2009; Pollack and Hafner-Burton Citation2010; Söderberg Citation2011; Steurer and Clar Citation2015; Casado-Asensio and Steurer Citation2016). Most of these studies mention the use of desk research of policy documents, interviews, and/or reviews of existing literature. However, explanations of underlying research designs and accounts of whether and how data was used and interpreted precisely are generally missing.

Authors who do concisely reflect on the methods used, often explicitly mention the restrictions of the methodological approaches they chose and are cautious in drawing conclusions (Klepp and Forster Citation1985; Kivimaa and Mickwitz Citation2006; Casado-Asensio and Steurer Citation2016). At the same time, the argument is made that these challenges should not result in excluding eventual outcomes from IPS evaluations, as changes within a polity (intermediate outcomes) are on themselves no guarantee for eventual policy success (Mickwitz and Kivimaa Citation2007; Pollack and Hafner-Burton Citation2010).

Only one study included has a more elaborate methodological reflection. Black, Pérez-Escamilla, and Rao (Citation2015) performed a review of existing studies of integrated nutrition and child development interventions. It should be noted that they are only explicit about the methodological approaches of the studies they review, and not about the review methods they used themselves. The authors argue that answering questions about the impact of integrated interventions requires experimental or quasi-experimental study designs and discuss four robust studies that have adopted such a design. In a first study, undernourished pre-schoolers were randomly assigned to an integrated intervention in child care centres in the city of Cali, Colombia. The successful results of this study (see Section 4.3), resulted in the nation-wide Colombian ‘Hogares Comunitarios de Bienestar’ integrated programme, which was evaluated in a subsequent study by assessing how varied lengths of exposure to the programme impacted child development. This variable of programme exposure was also used in a study of a programme of integrated interventions in child care centres in Bolivia. In a fourth study, communities in Mozambique were randomly assigned to receive psychosocial stimulation for children and literacy workshops for parents. All these research designs allowed for drawing relatively firm conclusions about the effects of integrated intervention strategies.

In terms of the independent variables that are used to explain IPSs’ outcomes, studies vary considerably in the concepts that are used. However, most independent variables are related to institutional factors (see Section 4.3). Concepts that have been used include governance mechanisms (Alves et al. Citation2013), institutional arrangements (Drimie and Ruysenaar Citation2010), institutional strategies (Hertin and Berkhout Citation2003), institutional conditions (Söderberg Citation2011), institutional measures (Pollack and Hafner-Burton Citation2010), federalism (Steurer and Clar Citation2015), and administrative capacities (Schout and Jordan Citation2005).

5. Discussion

5.1. Success or failure? Drawing up the balance

This paper started off with the question of what insights existing studies have provided into the outcomes of IPSs. The overall picture that has emerged from the research synthesis in Section 4 is not particularly encouraging. Although it should be stressed that this line of research is still very much in its infancy, both in terms of the number of studies and the rigour of methodological approaches, most integrated strategies that have been studied never achieved their intended intermediate outcomes, let alone eventual outcomes on the ground. Few strategies failed to be implemented in their entirety, but the findings of most studies are closer to the failure than to the success end of the spectre (cf. McConnell Citation2010). The adoption of integrated strategies in itself shows that the political and administrative conditions of various polities are to at least some extent conducive to holistic governance of crosscutting problems. However, the implementation of these strategies appears to be seriously hampered by the same sort of challenges they are intended to overcome, such as lack of political engagement, inter-sectoral and multi-level coordination failures and turf wars, and shortages of capacities and resources. Most of these constraining factors are not unknown to public administration and policy scholars; as such, the analysis confirms the insights from previous publications on coordination and policy integration (e.g. Briassoulis Citation2005; Jordan and Schout Citation2006; Bouckaert, Peters, and Verhoest Citation2010; Peters Citation2015). Studies that did include eventual outcomes in their analyses report no or only marginal effects. A notable exception in this respect is the meta-study of Black, Pérez-Escamilla, and Rao (Citation2015) on integrated nutrition and child development interventions, which found both micro- and macro-level strategies to have largely positive impacts on individual beneficiaries.

The findings of this study justify the question of whether pursuing IPSs is worth the effort at all. Are integrated strategies the Holy Grail for overcoming the problems that polities experience in governing crosscutting problems, or have expectations been inflated? There are two general answers to this question. A first line of reasoning entails that the constitutive parts of a polity, for example, sectors, levels, and agencies, will continue to compete with each other over jurisdictions, priorities, and resources (Jones and Strahan Citation1985; Nicholson-Crotty Citation2005). The adoption of an integrated strategy will not suddenly make these parts operate in a concerted manner (cf. Rayner and Howlett Citation2009a). Moreover, many integrated strategies target problems that have traditionally been relatively low on the agendas of decision-makers, such as environmental concerns. While the adoption of an integrated strategy may signify a periodic rise of issue-attention, sustained prioritization and resource allocation, which would be required for making large-scale integrated approaches work, are unlikely on the longer term (cf. Downs Citation1972). In short, the pursuit for optimal policy integration through integrated strategies may be unfeasible and inopportune. Some policy scholars have, therefore, made a plea in favour of less ambitious and glamorous forms of policy integration, for example, by organizing information exchanges across sectors and levels or by tackling the most obvious incoherencies (Jordan and Halpin Citation2006; Keast, Brown, and Mandell Citation2007). Although not included in this paper’s analysis, such more modest integration attempts may have fewer difficulties in overcoming the implementation barriers identified in Section 4.3.

An alternative response would be that it may be difficult to make IPSs work, but not impossible. The insights provided by the type of research reviewed in this paper can be instructive for realizing more successful policy delivery. Of course, this would still be a major task, but a combination of effective leadership, appropriate structures, and a coherent set of overarching ideas can make ambitious integration attempts work (Peters Citation2015). In their work on ‘boundary-spanning policy regimes’, Jochim and May (Citation2010) for example discuss various historic US governance constellations, such as those on drug criminalization, pollution abatement, and disability rights, in which these factors resulted in achieving relatively high degrees of concerted action across sectors and governance levels. In addition, the relatively positive findings of the study of Black, Pérez-Escamilla, and Rao (Citation2015) suggest that strategies may be more successful when they are well-circumscribed and have a clear dependent variable or target audience (e.g. undernourished children).

These two responses are not necessarily mutually incompatible. Instances of successfully implemented integrated strategies may indeed be rare, because of which these strategies should not be considered as a panacea for solving incoherencies and inconsistencies. At the same time, if a crosscutting problem manages to stay on high-level political agendas for a longer period or if pressure is sufficiently high, the deployment of an integrated strategy can still be an option. Additionally, although pursuing ‘lower’ forms of policy integration may certainly be more effective and opportune on the short term, integrated strategies can serve as important spots on the horizon for policy-makers (Candel Citation2016).

5.2. Avenues for strengthening research on IPSs

Whether a more convincing and definite answer to the question of whether IPSs may result in better outcomes can be given in the future, will for a large part rely on the further development of this line of research. The research synthesis presented in Section 4 showed various knowledge gaps that could serve as starting points for following studies; I name four.

First, as the current evidence base is very sparse, future studies of integrated strategies can further examine the insights that this paper has provided and consequently confirm, adjust, or complement them. Importantly, this needs to be done in a more systematic and rigorous manner. Section 4.4 showed that the methodological approaches of existing studies have not been particularly convincing; many studies did not reflect on methodological choices at all, while others were rather summary. Of course, this does not necessarily mean that these studies have not been performed rigorously and systematically, but this cannot be traced, let alone that they can be replicated. As a consequence, the insights that they provide, and therefore also the bases of this very review, should be treated with some reservation. This critique may not be unique to this stream of literature; still, improved methodological rigour and the use of innovative methods of data collection and analysis would be required to strengthen and expand the current evidence base. Various promising methodological approaches have been put forward in this respect, including experimental models and qualitative evaluation methods (for a good discussion of different approaches, see: Knill and Tosun Citation2012, 179–186). The study of Black, Pérez-Escamilla, and Rao (Citation2015) provides some good examples of the former, using (integrated) programme exposure and the random selection of communities as methods for controlling for alternative variables. In addition, the state of knowledge about IPSs would benefit from more comparative research designs. Comparisons of how integrated strategies function in different contexts will result in a better understanding of the influence of differences in how governance functions are performed and by whom (cf. Peters and Pierre Citation2016).

Second, more attention ought to be given to how integrated outcomes are socially constructed, that is, the political evaluation rationale. Vince’s research suggests that achieving success in a political sense is particularly challenging in complex actor-constellations involving different sectors, levels, and arenas (Sections 2 and 4.2). At the same time, very little is known about such processes. As in politics perceived success is at least as important as measurable achievements and as the latter is no guarantee for the former (Bovens and ‘t Hart Citation2016), these evaluation dynamics would be an important research avenue; both to arrive at a fuller scholarly understanding, but also to make attempts at stronger and more durable integrative commitments (cf. Jochim and May Citation2010). It would hereby be important to also pay more attention to the target groups of integrated interventions. Many integrated strategies ultimately aim to achieve a better service delivery or more effective way of addressing societal problems, such as food insecurity or environmental issues. So far, little is known about whether and under what conditions beneficiaries, professionals, and other people in the ‘field’ indeed experience these pay-offs.

Third and building forth on the last points, little is known yet about factors that enable the implementation of IPSs. Although it may well be the case that failure is more widespread than success, the almost exclusive focus on failure has prevented acquiring insights into key conditions for integrated strategies to work. In addition, limited attention to success does not help in explaining why and how institutional and agency-centred factors affect IPSs’ outcomes, and whether they are necessarily factors of failure. Peters (Citation2015, 43) puts this nicely by stating that ‘[i]f we have only failure stories then the very same factors we can identify as being present in policy failures may actually also appear in successes, meaning that we need to look for other causes for the observations’.

Fourth and related to Peters’ quote, Section 4.3 showed that previous studies have accounted for failure and (to a limited extent) success by pointing at relatively static and monolithic ‘factors’ or ‘barriers’. Many of these factors will not be unexpected to public administration and policy scholars, as they largely correspond with existing insights from the implementation literature. However, depending on their specific properties, interactions, and contextual conditions, many of these factors may contribute to both success and failure. A next step would therefore be to move beyond such lists of factors towards uncovering underlying mechanisms (cf. Hedström and Swedberg Citation1998; Biesbroek et al. Citation2014). Mechanism-based approaches explain a policy outcome through a configuration of mechanisms, which requires ‘understanding of the collection of actors (a1, … , ax), and their activities (b) under context conditions (C), as present during time period (t), so that the configuration of mechanisms (m1,  …  , mx) exhibits the plausible causal role (y) of the impasse (l)’ (Biesbroek et al. Citation2014, 110), or any other type of outcome. So far, the policy integration literature has only touched upon the relevance of such mechanism-based explanations and provided some generic examples (Biesbroek and Candel Citation2016), but a comprehensive research agenda remains to be unrolled.

Furthering studies on IPSs along these lines will result in both a more comprehensive and firmer scientific evidence base as well as a better informed point of departure for designing, deciding about, and implementing integrated approaches. It hardly needs saying, but may be good to repeat here, that eventually this knowledge and consequent interventions are hoped to have positive impacts on society. Only through continued conceptual and methodological innovation we can determine whether and under what conditions that is the case.

Notes on contributor

Jeroen Candel is an assistant professor at the Public Administration and Policy Group of Wageningen University, the Netherlands. His area of expertise is food (security) governance and policy, which he approaches through a Public Policy lens. He has a particular interest in conceptualizing and measuring policy integration. Dr. Candel has published in both high-ranking public policy and food journals. Beside his research and teaching, he engages closely with policymakers and stakeholders to advise about improving food governance arrangements and practices.

Acknowledgments

The author would like to thank Robbert Biesbroek and two anonymous reviewers for valuable comments on a previous draft of this article.

Disclosure statement

No potential conflict of interest was reported by the author.

Notes

1 Which can in their turn result or be embedded in an IPS.

2 In McConnell’s approach, process success or failure refers to the extent to which governments are successful in carrying out their basic governance processes, such as problem identification, policy formulation, and decision-making (cf. Peters and Pierre Citation2016); programme success is about whether a policy’s goals are achieved; and political success is whether decision-makers manage to reap political benefits from a policy. Contrary to the approach of Bovens and ‘t Hart, McConnell thus approaches programmatic and political success more in terms of the locus of success than as distinct evaluation rationales (which was pointed out by Bovens in a commentary, see: Bovens Citation2010, the arguments of which are the reason to adopt the distinction between programmatic and political rationales in this paper.

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Appendix 1. Search terms

Because few studies of IPSs explicitly label these strategies as such, the scope of the query was extended to all studies that take an explicit ‘policy integration’ or ‘integrated policy’ perspective (i.e. they mention these terms in title, abstract or keywords). This approach resulted in retrieving a relatively higher number of publications that proved irrelevant for the purpose of this paper, but for the sake of comprehensiveness their titles, abstract and keywords were all carefully read and judged on the basis of the selection criteria.

In addition to ‘policy integration’ and ‘integrated policy’, the search term ‘boundary-spanning policy regime’ was used, as these regimes have been shown to be often undergirded by an integrated strategy (Jochim and May Citation2010; May, Jochim, and Sapotichne Citation2011). However, eventually this search term did not produce additional evaluatory studies.

The final queries, both performed on 1 April 2016, are:

Scopus:

TITLE-ABS-KEY (‘integrated policy’ OR ‘policy integration’ OR ‘boundary-spanning policy regime’)

Web of Science:

TOPIC: (‘integrated policy’ OR ‘policy integration’ OR ‘boundary-spanning policy regime*’)

Indexes = SCI-EXPANDED, SSCI, A&HCI, ESCI Timespan = All years

Appendix 2. Data extraction matrix