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Research article

Improving banks’ profitability through income diversification and intellectual capital: The sub-Saharan Africa perspective

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Article: 2271658 | Received 02 Feb 2023, Accepted 03 Oct 2023, Published online: 09 Nov 2023

References

  • Abeysekera, I. (2007). Intellectual capital reporting between a developing and developed nations Journal of Intellectual Capital, 8(2), 329–35. https://doi.org/10.1108/14691930710742871
  • Abuzayed, B., Al-Fayoumi, N., & Molyneux, P. (2018). Diversification and bank stability in the GCC Journal of International Financial Markets, Institutions, and Money, 57, 17–43. https://doi.org/10.1016/j.intfin.2018.04.005
  • Abuzayed, B., Al-Fayoumi, N., & Molyneux, P. (2018a). Journal of International Financial Markets, Institutions, Money Diversification, and Bank Stability in the GCC Journal of International Financial Markets, Institutions, and Money, 57, 17–43. https://doi.org/10.1016/j.intfin.2018.04.005
  • Acharya, V. V., Hasan, I., & Saunders, A. (2006). Should banks be diversified? Evidence from individual bank loan portfolios The Journal of Business, 79(3), 1355–1412. https://doi.org/10.1086/500679
  • Acuña-Opazo, C., & González, O. C. (2021). The impacts of intellectual capital on financial performance and the value-added of the production evidence from Chile Journal of Economics, Finance, and Administrative Science, 26(51), 127–142. https://doi.org/10.1108/JEFAS-08-2019-0178
  • Addai, B., Tang, W., & Agyeman, A. S. (2022). Examining the impact of income diversification on bank performance: Are foreign banks heterogeneous? Journal of Applied Economics, 25(1), 1–21. https://doi.org/10.1080/15140326.2021.2022828
  • Adesina, K. S. (2019). Bank technical, allocative, and cost efficiencies in Africa: The influence of intellectual capital The North American Journal of Economics & Finance, 48 (February), 419–433. https://doi.org/10.1016/j.najef.2019.03.009
  • Adesina, K. S. (2021). How diversification affects bank performance: The role of human capital Economic Modelling, 94, 303–319. https://doi.org/10.1016/j.econmod.2020.10.016
  • Ahamed, M. (2017) Asset quality, non-interest income, and bank profitability: evidence from Indian banks Economic Modelling, 63, 1–14. https://doi.org/10.1016/j.econmod.2017.01.016
  • Ahangar, R. G. (2011). The relationship between intellectual capital and financial performance: An empirical investigation in an Iranian company African Journal of Business Management. https://doi.org/10.5897/AJBM10.712
  • Akkas, E., & Asutay, M. (2022a). The impact of intellectual capital formation and knowledge economy on banking performance: A case study of GCC’s conventional and Islamic banks Journal of Financial Reporting and Accounting https://doi.org/10.1108/JFRA-08-2021-0251
  • Akkas, E., & Asutay, M. (2022b). Intellectual capital disclosure and financial performance nexus in Islamic and conventional banks in the GCC countries International Journal of Islamic and Middle Eastern Finance and Management, 15(5), 943–966. https://doi.org/10.1108/IMEFM-01-2021-0015
  • Albert, Z. Z., & Dieter, F. (2003). The intellectual capital web: A systematic linking of intellectual capital and knowledge management Journal of Intellectual Capital, 4 (1), 34–48.
  • Alhassan, A. L., & Asare, N. (2016). Intellectual capital and bank productivity in emerging markets: Evidence from Ghana Management Decision, 54(3), 589–609. https://doi.org/10.1108/MD-01-2015-0025
  • Alipour, M. (2012). The effect of intellectual capital on firm performance: An investigation of Iranian insurance companies Measuring Business Excellence, 16(1), 53–66. https://doi.org/10.1108/13683041211204671
  • Al-Musali, M. A., & Ku Ismail, K. N. I. (2016) Cross-country comparison of intellectual capital performance and its impact on the financial performance of commercial banks in GCC countries International Journal of Islamic & Middle Eastern Finance & Management, 9(4), 512–531. https://doi.org/10.1108/IMEFM-03-2015-0029
  • Al-Zoubi, M. R. (2013). The impact of intellectual capital on SWOT analysis among Jordanian banking industry “empirical study”. International Journal of Business and Social Science, 4(2), 123–137.
  • Amidu, M., & Wolfe, S. (2013). Does bank competition and diversification lead to greater stability? Evidence from emerging markets Journal of Advanced Research, 3(3), 152–166 https://doi.org/10.1016/j.rdf.2013.08.002
  • Amihud, Y., & Lev, B. (1981). Risk reduction as a managerial motive for conglomerate mergers The Bell Journal of Economics, 12(2), 605. https://doi.org/10.2307/3003575
  • Ammar, N., & Boughrara, A. (2019). The impact of revenue diversification on bank profitability and risk: Evidence from the MENA banking industry Macroeconomics and Finance in Emerging Market Economies, 12(1), 36–70 https://doi.org/10.1080/17520843.2018.1535513
  • Antwi, S., Tetteh, A. B., Armah, P., & Dankwah, E. O. (2023). Anti-money laundering measures and financial sector development: empirical evidence from Africa Cogent Economics & Finance, 11(1) https://doi.org/10.1080/23322039.2023.2209957
  • Ardiansari, A., Ridloah, S., Pangestuti, I. R. D., & Indriyani, P. (2021). The influence of intellectual capital on the company’s financial performance and market value Universal Journal of Accounting and Finance https://doi.org/10.13189/UJAF.2021.090211
  • Asare, N., Alhassan, A. L., Asamoah, M. E., & Ntow-Gyamfi, M. (2017). Intellectual capital and profitability in an emerging insurance market Journal of Economic and Administrative Sciences, 33(1), 2–19. https://doi.org/10.1108/jeas-06-2016-0016
  • Asiedu, E. (2002). On the determinants of foreign direct investment in developing countries: Is Africa different? World Development, 30(1), 107–119. https://doi.org/10.1016/S0305-750X(01)00100-0
  • Avkiran, N. K. (2009). Removing the impact of the environment with units-invariant efficient frontier analysis: An illustrative case study with intertemporal panel data Omega, 37(3), 535–544. https://doi.org/10.1016/j.omega.2007.10.002
  • Baltagi, B. H., Demetriades, P. O., & Law, S. H. (2009). Financial development and openness: evidence from panel data Journal of Development Economics, 89(2), 285–296. https://doi.org/10.1016/j.jdeveco.2008.06.006
  • Barney, J. (1991). Firm resources and sustained competitive advantage Journal of Management, 17(1), 99–120. https://doi.org/10.1177/014920639101700108
  • Barney, J. B. (2012). Purchasing, supply chain management, and sustained competitive advantage: the relevance of resource-based theory The Journal of Supply Chain Management, 48(2), 3–6. https://doi.org/10.1111/j.1745-493X.2012.03265.x
  • Baum, C. F., Schaffer, M. E., & Stillman, S. (2003). Instrumental variables and GMM: estimation and testing The Stata Journal: Promoting Communications on Statistics and Stata, 3(1), 1–31. https://doi.org/10.1177/1536867x0300300101
  • Berger, A. N., Hasan, I., & Zhou, M. (2010). The effects of focus versus diversification on bank performance: Evidence from Chinese banks Journal of Banking and Finance, 34(7), 1417–1435. https://doi.org/10.1016/j.jbankfin.2010.01.010
  • Bertay, A. C., Demirgüç-Kunt, A., & Huizinga, H. (2015). Bank ownership and credit over the business cycle: Is lending by state banks less procyclical? Journal of Banking and Finance, 50, 326–339. https://doi.org/10.1016/j.jbankfin.2014.03.012
  • Boadi, I. (2018). Income diversification and banks’ profitability from an African market perspective: A relief for SMEs? African Entrepreneurship. https://doi.org/10.1007/978-3-319-73700-3_8
  • Boamah, N. A., Boakye-Dankwa, A., & Opoku, E. (2022). Risk-taking behaviour, competition, diversification, and performance of frontier and emerging economy banks Asian Journal of Economics and Banking, 6(1), 50–68. https://doi.org/10.1108/ajeb-04-2021-0047
  • Bontis, N. (1996). Management Decision Intellectual Capital: An exploratory study that develops measures and models Management Decision Journal of Intellectual Capital Planning Review, 36 (2). https://doi.org/10.1108/00251749810204142
  • Bontis, N. (2001). Assessing knowledge assets: A review of the models used to measure intellectual capital International Journal of Management Reviews, 3(1), 41–60. https://doi.org/10.1111/1468-2370.00053
  • Brahmana, R., Kontesa, M., & Gilbert, R. E. (2018a). Income diversification and bank performance: evidence from Malaysian banks. Economics Bulletin, 38 (2) 799–809.
  • Brahmana, R., Kontesa, M., & Gilbert, R. E. (2018b). Volume 38, Issue 2, income diversification and bank performance: Evidence from Malaysian Banks Economics Bulletin, 38(2), 799–809.
  • Brighi, P., & Venturelli, V. (2014). How do income diversification, firm size, and capital ratio affect performance? Evidence for bank holding companies Applied Financial Economics, 24(21), 1375–1392. https://doi.org/10.1080/09603107.2014.925064
  • Buch, C., & Drages, B. G. (2018) Structural changes in banking after the crisis. In CGFS Papers (Issue 60), https://www.bis.org/publ/cgfs60.pdf
  • Buyuran, B. (2020). Revenue diversification and bank performance: evidence from Turkey South-Eastern Europe Journal of Economics, 18(1), 7–18.
  • Caner, M., & Hansen, B. E. (2004). Instrumental variable estimation of a threshold model Econometric Theory, 20(5) https://doi.org/10.1017/S0266466604205011
  • Căpraru, B., Ihnatov, I., & Pintilie, N. L. (2020). Competition and diversification in the European banking sector Research in International Business and Finance, 51, 51. https://doi.org/10.1016/j.ribaf.2018.09.014
  • Carl, K., & Duho, T. (2020). Bank diversification and performance in an emerging market August 2019. https://doi.org/10.1108/IJMF-04-2019-0137
  • Carnes, C. M., Chirico, F., Hitt, M. A., Huh, D. W., & Pisano, V. (2017). Resource orchestration for innovation: structuring and bundling resources in growth- and maturity-stage firms Long Range Planning, 50(4), 472–486. https://doi.org/10.1016/j.lrp.2016.07.003
  • Chen, N., Liang, H. Y., & Yu, M. T. (2018) Asset diversification and bank performance: evidence from three Asian countries with a dual banking system Pacific Basin Finance Journal, 52, 40–53. May 2019. https://doi.org/10.1016/j.pacfin.2018.02.007
  • Chiaramonte, L., & Casu, B. (2017). Capital and liquidity ratios and financial distress Evidence from the European banking industry The British Accounting Review, 49(2), 138–161. https://doi.org/10.1016/j.bar.2016.04.001
  • Chiorazzo, V., Milani, C., & Salvini, F. (2008). Income diversification and bank performance: evidence from Italian banks Journal of Financial Services Research, 33(3), 181–203. https://doi.org/10.1007/s10693-008-0029-4
  • Chung, D., Kim, M. J., & Kang, J. (2019). Influence of alliance portfolio diversity on innovation performance: The role of internal capabilities in value creation Review of Managerial Science, 13(5), 1093–1120. https://doi.org/10.1007/s11846-018-0281-4
  • Cuong, H. V., Ngoc Luu, H., Quynh Thi Nguyen, L., & Chu, V. T. (2020). Income structure, diversification strategy, and owners’ benefit in cooperative financial institutions International Journal of Managerial Finance, 16(4), 481–500. https://doi.org/10.1108/IJMF-11-2018-0346
  • Davidson, J., Davidson, R., & MacKinnon, J. G. (1995). Estimation and inference in econometrics Economica, 62 (245), 133. https://doi.org/10.2307/2554780
  • Demirgüç-Kunt, A., & Huizinga, H. (2010). Bank activity and funding strategies: The impact on risk and returns Journal of Financial Economics, 98(3), 626–650 https://doi.org/10.1016/j.jfineco.2010.06.004
  • Demsetz, R. S., Saidenberg, M. R., & Strahan, P. E. (2011) Agency problems and risk-taking at banks. SSRN Electronic Journal. https://doi.org/10.2139/ssrn.943507
  • Deyoung, R., & Roland, K. P. (2001). Product mix and earnings volatility at commercial banks: evidence from a degree of total leverage model Journal of Financial Intermediation, 10(1), 54–84. https://doi.org/10.1006/jfin.2000.0305
  • Dietrich, A., & Wanzenried, G. (2011). Determinants of bank profitability before and during the crisis: Evidence from Switzerland Journal of International Financial Markets, Institutions, and Money, 21(3), 307–327 https://doi.org/10.1016/j.intfin.2010.11.002
  • Doan, A. T., Lin, K. L., & Doong, S. C. (2018) What drives bank efficiency? The interaction of bank income diversification and ownership International Review of Economics and Finance, 55, 203–219. https://doi.org/10.1016/j.iref.2017.07.019
  • Duho, K. C. T., Duho, D. M., & Forson, J. A. (2021). Impact of income diversification strategies on credit risk and market risk among microfinance institutions Journal of Economic and Administrative Sciences, 39(2), 523–546. ahead-of-p(ahead-of-print). https://doi.org/10.1108/jeas-09-2020-0166
  • Duho, K. C. T., & Onumah, J. M. (2019). Bank diversification strategy and intellectual capital in Ghana: An empirical analysis Asian Journal of Accounting Research, 4(2), 246–259. https://doi.org/10.1108/AJAR-04-2019-0026
  • Duho, K. C. T., & Onumah, J. M. (2021). Determinants of intellectual capital performance in banks: empirical insights from an emerging market Afro-Asian Journal of Finance and Accounting, 11(4), 583 https://doi.org/10.1504/AAJFA.2021.117740
  • Duho, K. C. T., Onumah, J. M., & Owodo, R. A. (2019). Bank diversification and performance in an emerging market International Journal of Managerial Finance, 16(1), 120–138. https://doi.org/10.1108/IJMF-04-2019-0137
  • Elsas, R., Hackethal, A., & Holzhäuser, M. (2010). The anatomy of bank diversification Journal of Banking and Finance, 34(6), 1274–1287 https://doi.org/10.1016/j.jbankfin.2009.11.024
  • Elyasiani, E., & Wang, Y. (2012). Bank holding company diversification and production efficiency. Applied Financial Economics, 22(17), 1409–1428. https://doi.org/10.1080/09603107.2012.657351
  • Esho, N., Kofman, P., & Sharpe, I. G. (2005). Diversification, fee income, and credit union risk Journal of Financial Services Research, 27(3), 259–281. https://doi.org/10.1007/s10693-005-1804-0
  • Espinosa-Méndez, C., Araya-Castillo, L., Jara Bertín, M., & Gorigoitía, J. (2021). International diversification, ownership structure, and performance in an emerging market: evidence from Chile Economic Research-Ekonomska Istrazivanja, 34(1), 1202–123. https://doi.org/10.1080/1331677X.2020.1820359
  • Fajriyanti, N., Sukoharsono, E. G., & Abid, N. (2021). Examining the effect of diversification, corporate governance, and intellectual capital on sustainability performance International Journal of Research in Business and Social Science (2147–4478), 10(2), 12–20. https://doi.org/10.20525/ijrbs.v10i2.1053
  • Feng, H., Morgan, N. A., & Rego, L. L. (2017). Firm capabilities and growth: The moderating role of market conditions Journal of the Academy of Marketing Science, 45(1), 76–92. https://doi.org/10.1007/s11747-016-0472-y
  • Ferreira, J. H. L., Zanini, F. A. M., & Alves, T. W. (2018) Bank revenue diversification: its impact on risk and return in Brazilian banks https://doi.org/10.1590/1808-057x201805810
  • Firer, S., & Mitchell Williams, S. (2003). Intellectual capital and traditional measures of corporate performance Journal of Intellectual Capital, 4(3), 348–360 https://doi.org/10.1108/14691930310487806
  • Fisch, J. H., & Schmeisser, B. (2020). Phasing the operation mode of foreign subsidiaries: reaping the benefits of multi-nationality through internal capital markets Journal of International Business Studies, 51(8), 1223–1255. https://doi.org/10.1057/s41267-020-00321-1
  • Francis, B. B., Hasan, I., Küllü, A. M., & Zhou, M. (2018). Should banks diversify or focus? Know thyself: The role of abilities Economic Systems, 42(1), 106–118. https://doi.org/10.1016/j.ecosys.2017.12.001
  • Frigerio, M., & Vandone, D. (2018) Bank ownership and firm-level performance: An empirical assessment of state-owned development banks https://doi.org/10.1007/978-3-319-90294-4_9
  • Gafrej, O., & Boujelbéne, M. (2021). The impact of performance, liquidity, and credit risks on banking diversification under financial stress International Journal of Islamic and Middle Eastern Finance and Management, 15(1), 66–82. https://doi.org/10.1108/IMEFM-09-2020-0488
  • Garson, G. D. (2014). Fundamentals of hierarchical linear and multilevel modelling Hierarchical Linear Modelling: A Guide and Applications https://doi.org/10.4135/9781483384450.n1
  • Gho, P. C. (2005). Intellectual capital performance of commercial banks in Malaysia. Journal of Intellectual Capital. https://doi.org/10.1108/14691930510611120
  • Ghosh, S. K., & Maji, S. G. (2015). Empirical validity of the value-added intellectual coefficient model in the Indian knowledge-based sector Global Business Review, 16(6), 947–962. https://doi.org/10.1177/0972150915597597
  • Githaiga, P. N. (2020a). Human capital, income diversification, and bank performance—an empirical study of East African banks Asian Journal of Accounting Research, 6(1), 95–108. https://doi.org/10.1108/ajar-06-2020-0041
  • Githaiga, P. N. (2020b). Intellectual capital, income diversification, and financial performance of commercial banks in Kenya Journal ofEconomics and Business, 23(9), 151–156.
  • Githaiga, P. N. (2022). Revenue diversification and financial sustainability of microfinance institutions Asian Journal of Accounting Research, 7(1), 31–43. https://doi.org/10.1108/ajar-11-2020-0122
  • Guerry, N., & Wallmeier, M. (2017). Valuation of diversified banks: new evidence Journal of Banking and Finance, 80, 203–214. https://doi.org/10.1016/j.jbankfin.2017.04.004
  • Gujarati, J. (2012). A comprehensive induction system A key to the retention of highly qualified teachers. The Educational Forum, 76(2), 218–223. https://doi.org/10.1080/00131725.2011.652293
  • Guthrie, J. P. (2001). High-involvement work practises, turnover, and productivity: Evidence from New Zealand Academy of Management Journal, 44(1), 180–190. https://doi.org/10.2307/3069345
  • Hair, J. F., & Joseph, F. (2007). Research methods for Business. Education + Training, 49(4), 336–337. https://doi.org/10.1108/et.2007.49.4.336.2
  • Hair, J. F., & Joseph, F. (2007). Successful strategies for teaching multivariate statistics Proceedings of the 7th International Conference, 49(4), 336–337. https://doi.org/10.1108/et.2007.49.4.336.2
  • Hamid, F. S., & Ibrahim, M. H. (2020). Competition, diversification, and performance in dual banking: A panel VAR analysis competition, diversification, and performance in dual Economic Research-Ekonomska Istraživanja, 1–27. https://doi.org/10.1080/1331677X.2020.1782242
  • Hejazi, R., Ghanbari, M., & Alipour, M. (2016). Intellectual, human, and structural capital effects on firm performance as measured by Tobin’s Q. Knowledge and Process Management https://doi.org/10.1002/kpm.1529
  • Hidayat, W. Y., Kakinaka, M., & Miyamoto, H. (2012). Bank risk and non-interest income activities in the Indonesian banking industry Journal of Asian Economics, 23(4), 335–343. https://doi.org/10.1016/j.asieco.2012.03.008
  • Hoang, H. T., Nguyen, H. T. H., Vu, N. H., Le, A. H., & Quach, H. H. (2020). Intellectual capital and firm performance in Vietnam, 2012–2016 International Journal of Learning and Intellectual Capital, 17(1), 27. https://doi.org/10.1504/IJLIC.2020.105325
  • Hunjra, A. I., Hanif, M., Mehmood, R., & Nguyen, L. V. (2020). Diversification, corporate governance, regulation, and bank risk-taking Journal of Financial Reporting and Accounting, 19(1), 92–108 https://doi.org/10.1108/JFRA-03-2020-0071
  • Huynh, J., Dang, V. D., & McMillan, D. (2021). Loan portfolio diversification and bank returns: Do business models and market power matter? Cogent Economics & Finance, 9(1) https://doi.org/10.1080/23322039.2021.1891709
  • Ibrahim, M., & Alagidede, P. (2017). Financial development, growth volatility, and information asymmetry in sub-Saharan Africa: Does Law Matter? South African Journal of Economics, 85(4), 570–588 https://doi.org/10.1111/saje.12176
  • Ikeora, J. J., Igbodika, M. A., & Andabai, P. (2016). Banking sector reforms and the performance of the Nigerian economy: an A vector error correction investigation (VECM) European Journal of Research and Reflection in Management Sciences. 4 (2).
  • Inkinen, H. (2015). Review of empirical research on intellectual capital and firm performance Journal of Intellectual Capital, 16(3), 518–565. https://doi.org/10.1108/JIC-01-2015-0002
  • Ishak, Z., & Napier, C. (2006). Expropriation of minority interests and corporate diversification in Malaysia Asian Academy of Management Journal of Accounting and Finance, 2, 85–113.
  • Jensen, C. M. (1986). Agency costs of free cash flow, corporate Finance, and takeovers agency costs of free cash flow, corporate Finance, and takeovers. The American Economic Review, 76 (2) 323–329.
  • Jouida, S., & Hellara, S. (2018). Diversification, capital structure, and performance: A simultaneous equation approach Managerial and Decision Economics, 39(2), 117–130. https://doi.org/10.1002/mde.2874
  • Kaplan, R. S., & Norton, D. P. (2004). Measuring the strategic readiness of intangible assets Harvard Business Review, 82 (2) 52–63.
  • Kennedy, P. (2008). A guide to Econometrics (6th ed.). Wiley-Blackwell.
  • Khan, S. Z., Yang, Q., & Waheed, A. (2019). Investment in intangible resources and capabilities spurs sustainable competitive advantage and firm performance. Corporate Social Responsibility and Environmental Management, 26(2), 285–295. https://doi.org/10.1002/csr.1678
  • Klein, P. G., & Saidenberg, M. R. (2005) Diversification, organisation, and efficiency: evidence from bank holding companies SSRN Electronic Journal. https://doi.org/10.2139/ssrn.98653
  • Köhler, M. (2015). Which banks are more risky? The impact of business models on bank stability Journal of Financial Stability, 16, 195–212. https://doi.org/10.1016/j.jfs.2014.02.005
  • Kolachi, N. A., & Shah, H. A. (2013) BRICS countries and their strategic HRD agenda in 2020 International Journal of Management and Information Systems (IJMIS), 17(2), 105 https://doi.org/10.19030/ijmis.v17i2.7714
  • Kor, Y. Y., & Mahoney, J. T. (2005). How dynamics, management, and governance of resource deployments influence firm-level performance Strategic Management Journal, 26(5), 489–496. https://doi.org/10.1002/smj.459
  • Kremer, S., Bick, A., & Nautz, D. (2013). Inflation and growth: new evidence from a dynamic panel threshold analysis Empirical Economics, 44(2), 861–878. https://doi.org/10.1007/s00181-012-0553-9
  • Laeven, L., & Levine, R. (2007). Is there a diversification discount in financial conglomerates? Journal of Financial Economics, 85(2), 331–367. https://doi.org/10.1016/j.jfineco.2005.06.001
  • Lee, Y., Kim, W. C., & Kim, J. H. (2020). Achieving portfolio diversification for individuals with low financial sustainability Sustainability, 12(17), 7073. https://doi.org/10.3390/su12177073
  • Le, T. D., Ho, T. H., Nguyen, D. T., & Ngo, T. (2022). A cross-country analysis on diversification, Sukuk investment, and the performance of Islamic banking systems under the COVID-19 pandemic Heliyon, 8(3), e09106. https://doi.org/10.1016/j.heliyon.2022.e09106
  • Le, T. D. Q., & McMillan, D. (2021). Geographic expansion, income diversification, and bank stability: evidence from Vietnam Cogent Business & Management, 8(1) https://doi.org/10.1080/23311975.2021.1885149
  • Le, T. D. Q., Nguyen, D. T., & McMillan, D. (2020). Intellectual capital and bank profitability: new evidence from Vietnam Cogent Business & Management, 7(1), 1859666. https://doi.org/10.1080/23311975.2020.1859666
  • Lewellen, W. G. (1971). A pure financial rationale for the conglomerate merger. The Journal of Finance, 26(2), 521–537. https://doi.org/10.1111/j.1540-6261.1971.tb00912.x
  • Li, S. (2019). Banking sector reform, competition, and bank stability: An empirical analysis of transition countries Emerging Markets Finance and Trade, 55(13), 3069–3093. https://doi.org/10.1080/1540496X.2018.1540349
  • Liang, H. Y., Kuo, L. W., Chan, K. C., & Chen, S. H. (2020). Bank diversification, performance, and corporate governance: Evidence from China Asia-Pacific Journal of Accounting and Economics, 27(4), 389–405. https://doi.org/10.1080/16081625.2018.1452618
  • Ljubownikow, G., & Ang, S. H. (2020). Competition, diversification, and performance Journal of Business Research, 112, 81–94. https://doi.org/10.1016/j.jbusres.2020.03.002
  • Luu, H. N., Nguyen, L. Q. T., Vu, Q. H., & Tuan, L. Q. (2019). Income diversification and financial performance of commercial banks in Vietnam Review of Behavioural Finance, 12(3), 185–199. https://doi.org/10.1108/rbf-05-2019-0066
  • Luu, H. N., Nguyen, L. Q. T., Vu, Q. H., & Tuan, L. Q. (2020). Income diversification and financial performance of commercial banks in Vietnam: Do experience and ownership structure matter? Review of Behavioural Finance, 12(3), 185–199. https://doi.org/10.1108/RBF-05-2019-0066
  • Maji, S. G., & Hussain, F. (2021). Technical efficiency, intellectual capital efficiency, and bank performance in emerging markets: the case of India Journal of Advances in Management Research, 18(5), 708–737 https://doi.org/10.1108/JAMR-09-2020-0218
  • Majumder, M. T. H., Ruma, I. J., & Akter, A. (2023). Does intellectual capital affect bank performance? Evidence from Bangladesh LBS Journal of Management & Research, ahead-of-print https://doi.org/10.1108/LBSJMR-05-2022-0016
  • Markowitz, H. M. (1952). Portfolio selection. Journal of Finance, 7(1), 77–91. https://doi.org/10.1111/j.1540-6261.1952.tb01525.x
  • Markowitz, H. M. (1991). Foundations of portfolio theory Harry Markowitz: Selected Works, 46(2), 481–490. https://doi.org/10.2307/2328831
  • Marzo, G. (2022). A theoretical analysis of the value-added intellectual coefficient (VAIC) Journal of Management & Governance, 26(2), 551–577. https://doi.org/10.1007/s10997-021-09565-x
  • Meles, A., Porzio, C., Sampagnaro, G., & Verdoliva, V. (2016). The impact of intellectual capital efficiency on commercial bank performance: Evidence from the US Journal of Multinational Financial Management, 36, 64–74. https://doi.org/10.1016/j.mulfin.2016.04.003
  • Meng, X., Cavoli, T., & Deng, X. (2018) Determinants of income diversification: Evidence from Chinese banks Applied Economics, 50(17), 1934–1951. https://doi.org/10.1080/00036846.2017.1383594
  • Mercieca, S., Schaeck, K., & Wolfe, S. (2007). Small European banks: benefits from diversification? Journal of Banking and Finance, 31(7), 1975–1998. https://doi.org/10.1016/j.jbankfin.2007.01.004
  • Meslier, C., Tacneng, R., & Tarazi, A. (2014). Is bank income diversification beneficial? Evidence from an emerging economy Journal of International Financial Markets, Institutions, and Money, 31, 97–126 https://doi.org/10.1016/j.intfin.2014.03.007
  • Mohammed, J. I., Karimu, A., Fiador, V. O., & Abor, J. Y. (2020). Oil revenues and economic growth in oil-producing countries: The role of domestic financial markets Resources Policy, 69, 101832. https://doi.org/10.1016/j.resourpol.2020.101832
  • Mondal, A., & Ghosh, S. K. (2012). Intellectual capital and financial performance of Indian banks Journal of Intellectual Capital, 13(4), 515–530 https://doi.org/10.1108/14691931211276115
  • Muhammad, R., Mangawing, M. A., & Salsabilla, S. (2021). The influence of intellectual capital and corporate governance on financial performance of Islamic banks. Jurnal Ekonomi & Keuangan Islam. https://doi.org/10.20885/jeki.vol7.iss1.art6
  • Natsir, K., & Bangun, N. (2021). The role of intellectual capital in increasing company value with profitability as an intervening variable Proceedings of the Ninth International Conference on Entrepreneurship and Business Management (ICEBM 2020) https://doi.org/10.2991/aebmr.k.210507.016
  • Nguyen, D. Q. (2018). The impact of intellectual capital and knowledge flows on incremental and radical innovation: Empirical findings from a transition economy of Vietnam. Asia-Pacific Journal of Business Administration. https://doi.org/10.1108/APJBA-03-2018-0044
  • Nguyen, N. (2019). Revenue diversification, risk, and bank performance of Vietnamese commercial banks Journal of Risk and Financial Management, 12(3), 138 https://doi.org/10.3390/jrfm12030138
  • Nguyen, D. T., Le, T. D. Q., & Tran, S. H. (2023). The moderating role of income diversification on the relationship between intellectual capital and bank performance is evidenced in Viet Nam. Cogent Business & Management, 10(1) https://doi.org/10.1080/23311975.2023.2182621
  • Nguyen, T. C., Vinh Vo, D., & Nguyen, V. C. (2015) Risk and income diversification in the Vietnamese banking system Journal of Applied Finance and Banking, 5 (1), 93.
  • Nisar, S., Peng, K., Wang, S., & Ashraf, B. (2018). The impact of revenue diversification on bank profitability and stability: empirical evidence from South Asian countries International Journal of Financial Studies, 6(2), 40 https://doi.org/10.3390/ijfs6020040
  • North, K., & Kumta, G. (2018). Towards a digitally enabled knowledge society https://doi.org/10.1007/978-3-319-59978-6_1
  • Nyantakyi-Frimpong, H. (2017). Agricultural diversification and dietary diversity: A feminist political ecology of the everyday experiences of landless and smallholder households in northern Ghana Geoforum, 86, 63–75. https://doi.org/10.1016/j.geoforum.2017.09.003
  • Ofoeda, I., Agbloyor, E., & Abor, J. Y. (2022). Financial sector development, anti-money laundering regulations, and economic growth International Journal of Emerging Markets https://doi.org/10.1108/IJOEM-12-2021-1823
  • Olarewaju, O. M., Migiro, S. O., & Sibanda, M. (2018) Operational diversification and financial performance of sub-Saharan African commercial banks: a static and dynamic approach Financial institutions and services operational diversification and financial performance of sub-Saharan African commercial banks Financial Institutions and Services, 13(5), 84–106.
  • Onumah, J. M., & Duho, K. C. T. (2015). Intellectual capital: its impact on the financial performance and financial stability of Ghanaian banks Athens Journal of Business and Economics. https://doi.org/10.30958/ajbe.5-3-4
  • Onumah, J. M., & Duho, K. C. T. (2020). Impact of intellectual capital on bank efficiency in emerging markets: Evidence from Ghana International Journal of Banking, Accounting and Finance, 11(4), 435. https://doi.org/10.1504/IJBAAF.2020.110303
  • Ousama, A. A., Hammami, H., & Abdulkarim, M. (2020). The association between intellectual capital and financial performance in the Islamic banking industry: An analysis of the GCC banks International Journal of Islamic and Middle Eastern Finance and Management, 13(1), 75–93. https://doi.org/10.1108/IMEFM-05-2016-0073
  • Ozkan, N., Cakan, S., & Kayacan, M. (2017). Intellectual capital and financial performance: A study of the Turkish banking sector Borsa Istanbul Review, 17(3), 190–198. https://doi.org/10.1016/j.bir.2016.03.001
  • Pasiouras, F., & Kosmidou, K. (2007). Factors influencing the profitability of domestic and foreign commercial banks in the European Union Research in International Business and Finance, 21(2), 222–237. https://doi.org/10.1016/j.ribaf.2006.03.007
  • Penrose, E. T. (1960). The growth of the firm—A case study: The Hercules Powder Company Business History Review, 34(1), 1–23. https://doi.org/10.2307/3111776
  • Pulic, A. (1998). Measuring the performance of intellectual potential in the knowledge economy The 2nd “World Congress on the Management of Intellectual Capital”.
  • Pulic, A. (2000). VAICTM isan accounting tool for IC management. International Journal of Technology Management, 20(5/6/7/8), 702. https://doi.org/10.1504/ijtm.2000.002891
  • Pulic, A. (2004). Intellectual capital – does it create or destroy value? Measuring Business Excellence, 8(1), 62–68. https://doi.org/10.1108/13683040410524757
  • Pulic, A. (2008). The principles of intellectual capital efficiency—a - a brief description Croatian Intellectual Capital Centre.
  • Quyen, P. G., Ha, N. T. T., Darsono, S. N. A. C., & Minh, T. D. T. (2021). Income diversification and financial performance: The mediating effect of banks’ size, ownership structure, and the financial crisis in Vietnam Journal of Accounting and Investment, 22(2) https://doi.org/10.18196/jai.v22i2.10775
  • Roodman, D. (2009a). How to do xtabond2: An Introduction to Difference and System GMM in Stata The Stata Journal: Promoting Communications on Statistics and Stata, 9(1), 86–136. https://doi.org/10.1177/1536867x0900900106
  • Roodman, D. (2009a). A note on the theme of too many instruments Oxford Bulletin of Economics and Statistics, 71(1), 135–158. https://doi.org/10.1111/j.1468-0084.2008.00542.x
  • Saif-Alyousfi, A. Y. H. (2020). Determinants of bank shareholder value: Evidence from GCC countries International Journal of Managerial Finance, 16(2), 224–252. https://doi.org/10.1108/IJMF-05-2019-0170
  • Sanya, S., & Wolfe, S. (2011). Can banks in emerging economies benefit from revenue diversification? Journal of Financial Services Research, 40(1-2), 79–101. https://doi.org/10.1007/s10693-010-0098-z
  • Sardo, F., & Serrasqueiro, Z. (2017). A European empirical study of the relationship between firms’ intellectual capital, financial performance, and market value. Journal of Intellectual Capital, 18(4), 771–788 https://doi.org/10.1108/JIC-10-2016-0105
  • Saunders, M., Lewis, P., & Thornhill, A. (2009). Research methods for business students (Fitfth ed.) Pearson Education.
  • Sekaran, U., & Bougie, R. (2011). Business research methods: A skill-building approach Wiley. http://as.wiley.com/WileyCDA/WileyTitle/productCd-111994225X.html#
  • Seo, M. H., Kim, S., & Kim, Y. J. (2019). Estimation of a dynamic panel threshold model using Stata Stata Journal, 19(3), 685–697. https://doi.org/10.1177/1536867X19874243
  • Seo, M. H., & Shin, Y. (2016). Dynamic panels with threshold effects and endogeneity Journal of Econometrics, 195(2), 169–186. https://doi.org/10.1016/j.jeconom.2016.03.005
  • Serenko, A., & Bontis, N. (2004). Meta-review of knowledge management and intellectual capital literature: Citation impact and research productivity rankings Knowledge & Process Management, 11(3), 185–198. https://doi.org/10.1002/kpm.203
  • Sgrò, F., Ciambotti, G., Bontis, N., & Ayiku, A. (2020). Intellectual capital in east and West African social enterprises. Knowledge & Process Management, 27(4), 332–344. https://doi.org/10.1002/kpm.1638
  • Shahzad, F., Baig, M. H., Rehman, I. U., Saeed, A., & Asim, G. A. (2021). Does intellectual capital efficiency explain corporate social responsibility engagement-firm performance relationship? Evidence from environmental, social and governance performance of US listed firms. Borsa Istanbul Review, 22(2), 295–305. https://doi.org/10.1016/j.bir.2021.05.003
  • Sharma, S., & Anand, A. (2018). Income diversification and bank performance: Evidence from BRICS nations. International Journal of Productivity and Performance Management, 67(9), 1625–1639. https://doi.org/10.1108/IJPPM-01-2018-0013
  • Sharma, S., & Anand, A. (2020). Geographical diversification and bank performance: Evidence from Indian banks. International Journal of Productivity and Performance Management, 69(3), 583–596. https://doi.org/10.1108/IJPPM-01-2019-0049
  • Shim, J. (2019). Loan portfolio diversification, market structure and bank stability. Journal of Banking and Finance, 104, 103–115. https://doi.org/10.1016/j.jbankfin.2019.04.006
  • Smriti, N., & Das, N. (2018). The impact of intellectual capital on firm performance: A study of Indian firms listed in COSPI. Journal of Intellectual Capital, 19(5), 935–964. https://doi.org/10.1108/JIC-11-2017-0156
  • Soewarno, N., & Tjahjadi, B. (2020). Measures that matter: An empirical investigation of banking firms’ intellectual capital and financial performance in Indonesia. Journal of Intellectual Capital, 21(6), 1085–1106. https://doi.org/10.1108/JIC-09-2019-0225
  • Staikouras, S. K. (2003). The interest rate risk exposure of financial intermediaries: A Review of the theory and empirical evidence. In Financial markets. Institutions and Instruments. https://doi.org/10.1111/1468-0416.t01-1-00002
  • Stiroh, K. J. (2004). Diversification in banking: Is noninterest income the answer? Journal of Money, Credit, and Banking, 36(5), 853–882. https://doi.org/10.1353/mcb.2004.0076
  • Stiroh, K. J., & Rumble, A. (2006). The dark side of diversification: The case of US financial holding companies. Journal of Banking and Finance, 30(8), 2131–2161. https://doi.org/10.1016/j.jbankfin.2005.04.030
  • Stulz, R. M. (1990). Managerial discretion and optimal financing policies. Journal of Financial Economics, 26(1), 3–27. https://doi.org/10.1016/0304-405X(90)90011-N
  • Suseno, N. S., Hermina, T., Ramdhani, A., & Utari, L. (2019). The impact of intellectual capital on financial performance. International Journal of Recent Technology and Engineering, 8(1), 359–365. https://doi.org/10.30871/jama.v1i1.1239
  • Swart, J. (2006). Intellectual capital: Disentangling an enigmatic concept. Journal of Intellectual Capital, 7(2), 136–159. https://doi.org/10.1108/14691930610661827
  • Syahyunan Muda, I., Siregar, H. S., Sadalia, I., & Chandra, G. (2017). The effect of Lerner Index and income diversification on the general bank stability in Indonesia. Banks and Bank Systems, 12(4), 56–64. https://doi.org/10.21511/bbs.12(4).2017.05
  • Tariq, W., Usman, M., Tariq, A., Rashid, R., Yin, J., Memon, M. A., & Ashfaq, M. (2021). Bank maturity, income diversification, and bank stability. Journal of Business Economics and Management, 22(6), 1492–1511. https://doi.org/10.3846/jbem.2021.15583
  • Teece, D. J. (1980). Economies of scope and the scope of the enterprise. Journal of Economic Behavior and Organization, 1(3), 223–247. https://doi.org/10.1016/0167-2681(80)90002-5
  • Tiwari, R., & Vidyarthi, H. (2018). Intellectual capital and corporate performance: A case of Indian banks. Journal of Accounting in Emerging Economies, 8(1), 84–105. https://doi.org/10.1108/JAEE-07-2016-0067
  • Tiwari, R., Vidyarthi, H., & Kumar, A. (2023). Nexus between intellectual capital and bank productivity in India. Journal of Risk and Financial Management, 16(1), 54. https://doi.org/10.3390/jrfm16010054
  • Tran, N. P., Van, L. T. H., & Vo, D. H. (2020). The nexus between corporate governance and intellectual capital in Vietnam. Journal of Asia Business Studies, 14(5), 637–650. https://doi.org/10.1108/JABS-01-2020-0007
  • Tran, D. B., & Vo, D. H. (2018). Should bankers be concerned with intellectual capital? A study of the Thai banking sector. Journal of Intellectual Capital, 19(5), 897–914. https://doi.org/10.1108/JIC-12-2017-0185
  • Uddin, M. J., Majumder, M. T. H., Akter, A., & Zaman, R. (2021). Do the diversification of income and assets spur bank profitability in Bangladesh? A dynamic panel data analysis. Vilakshan - XIMB Journal of Management, 19(2), 177–194. https://doi.org/10.1108/xjm-01-2021-0023
  • Ulum, I., Ghozali, I., & Purwanto, A. (2014). Intellectual capital performance of Indonesian banking sector: A modified VAIC (M-VAIC) perspective. Asian Journal of Finance & Accounting, 6(2), 103. https://doi.org/10.5296/ajfa.v6i2.5246
  • Ur Rehman, A., Aslam, E., & Iqbal, A. (2022). Intellectual capital efficiency and bank performance: Evidence from Islamic banks. Borsa Istanbul Review, 22(1), 113–121. https://doi.org/10.1016/j.bir.2021.02.004
  • Uslu, H. (2022). The role of intellectual capital in financial development: Evidence from the banking sector of Turkey. Competitiveness Review, 32(2), 230–249. https://doi.org/10.1108/CR-06-2020-0084
  • Valaei, N., Rezaei, S., Bressolles, G., & Dent, M. M. (2022). Indispensable components of creativity, innovation, and FMCG companies’ competitive performance: A resource-based view (RBV) of the firm. Asia-Pacific Journal of Business Administration https://doi.org/10.1108/APJBA-11-2020-0420
  • Vidyarthi, H. (2019). Dynamics of intellectual capitals and bank efficiency in India. The Service Industries Journal, 39(1), 1–24. https://doi.org/10.1080/02642069.2018.1435641
  • Vidyarthi, H. (2020). Dynamics of income diversification and bank performance in India. Journal of Financial Economic Policy, 12(3), 383–407. https://doi.org/10.1108/JFEP-05-2019-0084
  • Vo, D. H., & Tran, N. P. (2021). Intellectual capital and bank performance in Vietnam. Managerial Finance, 47(8), 1094–1106. https://doi.org/10.1108/MF-03-2020-0143
  • Wang, C., & Lin, Y. (2021). Income diversification and bank risk in Asia Pacific. The North American Journal of Economics & Finance, 57, 101448. https://doi.org/10.1016/j.najef.2021.101448
  • Weqar, F., Sofi, Z. A., & Haque, S. M. I. (2021). Nexus between intellectual capital and business performance: Evidence from India. Asian Journal of Accounting Research, 6(2), 180–195. https://doi.org/10.1108/ajar-07-2020-0064
  • Wintoki, M. B., Linck, J. S., & Netter, J. M. (2012). Endogeneity and the dynamics of internal corporate governance. Journal of Financial Economics, 105(3), 581–606. https://doi.org/10.1016/j.jfineco.2012.03.005
  • Wooldridge, J. M. (2013). Introductory econometrics a modern approach (5th ed.). Cengage Learning.
  • Wooldridge, J. M. (2016). Introductory econometrics 6th edition. Economica, 42(165).
  • Wu, S. H., Lin, L. Y., & Hsu, M. Y. (2007). Intellectual capital, dynamic capabilities and innovative performance of organisations. International Journal of Technology Management, 39(3/4), 279. https://doi.org/10.1504/IJTM.2007.013496
  • Yaseen, H., & Al-Amarneh, A. (2021). Intellectual capital and financial performance: Case of the emerging market banks. Journal of Governance & Regulation, 10(1), 35–41. https://doi.org/10.22495/jgrv10i1art4
  • Yu, J. R., Lee, W. Y., & Chiou, W. J. P. (2014). Diversified portfolios with different entropy measures. Applied Mathematics and Computation, 241, 47–63. https://doi.org/10.1016/j.amc.2014.04.006
  • Zou, K., & Xinyi Cai, J. H. (2021). An empirical study on the influence of diversification on the operating cost of commercial banks. Converter, 2021(5), 757–770. https://doi.org/10.17762/converter.342