The Institutional Foundations of Inequality and Growth
研究发现，不平等对长期经济增长没有直接影响，真正起作用的是产权保护制度，它同时促进增长和降低收入不平等。
Abstract After a decade of research, the effect of inequality on long-run economic growth remains unresolved, in part because researchers have treated omitted variable bias as an estimation problem rather than a deeper question of causality. In this article we argue that the key omitted variable is the quality of economic institutions. Using both cross-country and panel data specifications, we find no direct effect of inequality on growth in the long-run. Rather, the protection of property rights simultaneously raises growth rates and reduces income inequality. We interpret these findings as evidence that insecure property rights disproportionately disadvantage the poor.