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Income inequality and systemic banking crises: A nonlinear nexus

Shengquan Wang

Economic Systems, 2023, vol. 47, issue 4

Abstract: Motivated by Rajan’s work, we propose that income inequality and systemic banking crises have a nonlinear nexus. In addition to examining the linear “Rajan effect,” we propose a “Kuznets effect” based on an assumption that income inequality has a nonlinear impact on growth, conditional on the stage of economic development, and thus plays a nonlinear role in modeling crises. We test the existence of this nexus using a sample covering 172 economies for a period of fifty years. We confirm that the relationship is U-shaped and identify the threshold level of income inequality that is beneficial for financial stability. Additionally, the U-test and area under the receiver operating characteristic (AUROC) statistics confirm that nonlinearity, and our model has good predictive performance of forecasting. Furthermore, the results of our panel regressions are consistent and are robust to several tests. We then identify the Rajan and Kuznets effects using a two-step test. We conclude that the impact of income inequality on the occurrence of systemic banking crises is U-shaped.

Keywords: Income inequality; Kuznets effect; Rajan effect; Systemic banking crises (search for similar items in EconPapers)
JEL-codes: D3 E44 G20 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecosys:v:47:y:2023:i:4:s0939362523000572

DOI: 10.1016/j.ecosys.2023.101123

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