Bitte verwenden Sie diesen Link, um diese Publikation zu zitieren, oder auf sie als Internetquelle zu verweisen: https://hdl.handle.net/10419/157168 
Erscheinungsjahr: 
2016
Schriftenreihe/Nr.: 
IW-Report No. 7/2016
Verlag: 
Institut der deutschen Wirtschaft (IW), Köln
Zusammenfassung: 
Recently, some influential empirical studies found evidence in favour of a negative relationship between income inequality and economic growth, implying the conclusion that inequality reducing policies will foster economic growth. The studies have in common that they all rely on the System GMM dynamic panel estimator. We argue that this estimator is most likely to suffer from a severe weak instrument problem in the inequality-growth setting because lagged differences of inequality have practically no explanatory power for current inequality levels. Thus, it is biased in the direction of OLS and fails to control for country heterogeneity. Using traditional Fixed Effects models or Difference GMM estimators yields positive coefficients on the inequality variable. Furthermore, we find evidence for a nonlinear relationship between inequality and growth when considering a sample of developed and developing economies. Thus, the effect of net income inequality on growth seems to be negative only for less-developed countries and for countries with high levels of inequality, and non-significant or rather positive otherwise.
Schlagwörter: 
Inequality
Economic Growth
Redistribution
System GMM
JEL: 
O15
O47
H23
Dokumentart: 
Research Report

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