The impact of recycling on the productivity of Municipal Solid Waste: a comparison of the Malmquist and Malmquist-Luenberger Productivity Indexes

Figures & data

Table 1. Descriptive statistics of the variables used for 2015 and 2019 for 143 Chilean municipalities.

Year	Total anual costs (CLP/year)	Paper and paperboard (tons/year)	Glass (tons/year)	Plastics (tons/year)	Organic waste (tons/year)	Other inorganic waste (tons/year)	Unsorted waste (tons/year)
2015	1,039,630	182	75	18	817	712	26,205
2019	2,299,943	3,853	411	77	1,470	6,304	45,202
	Total anual costs (CLP per capita)	Paper and paperboard (ton per capita)	Glass (ton per capita)	Plastics(ton per capita) (ton per capita)	Organic waste (ton per capita)	Other inorganic waste (ton per capita)	Unsorted waste (ton per capita)
2015	12762	2.23	0.92	0.22	10.03	8.74	321.69
2019	17250	6.02	2.30	0.28	3.70	14.04	350.20

Figure 1. Average evolution of the productivity change (MPI) and eco-productivity change (MLPI) and its drivers efficiency change (MECH and MLECH) and technical change (MTCH and MLTCH) of the Chilean municipalities evaluated.

Table 2. Main statistics of productivity change and eco-productivity change of Chilean municipalities evaluated.

	Malmquist Productivity Index				Malmquist-Luenberger Productivity Index
	Average	Minimum	Maximum	% municipalities improved	Average	Minimum	Maximum	% municipalities improved
2015/16	1.254	0.296	7.423	55.9	1.010	0.341	1.925	33.6
2016/17	1.161	0.086	6.109	58.0	1.029	0.234	5.446	42.0
2017/18	1.295	0.109	8.109	53.1	1.021	0.050	3.821	45.5
2018/19	3.018	0.009	9.039	70.6	2.750	0.585	4.466	67.1

Figure 2. (a and b) Difference between aggregated MPI and MLPI values for 2015/19 years for the Chilean municipalities evaluated.

Not a clear pattern is observed across Chilean municipalities in terms of productivity change and eco-productivity change.

Figure 3. (a and b) Difference between aggregated MECH and MLECH values for 2015/19 years for the Chilean municipalities evaluated.

Most of the municipalities located in the south of the country suffered aretardation of the efficiency change between 2015 and 2019.

Figure 4. (a and b) Difference between aggregated MTCH and MLTCH values for 2015/19 years for the Chilean municipalities evaluated.

Most of the municipalities assessed experienced apositive growth of the technical change between 2015 and 2019.

Data availability statement

The data that support this research and other findings of this paper are available from the corresponding author upon reasonable request of each reader.