Thursday, October 22, 2015
Revisiting the drivers of inequality: The role of labour market institutions
Rising inequality in advanced economies, in particular at the top of the distribution, has become a great focus of attention for economists and policymakers. In most advanced economies, the share of income accruing to the top 10% earners has increased at the expense of all other income groups (Figure 1). While some inequality can increase efficiency by strengthening incentives to work and invest, recent research suggests that high inequality is associated with lower and less sustainable growth in the medium run (Berg and Ostry 2011, Dabla-Norris et al. 2015). Moreover, a rising concentration of income at the top of the distribution can also reduce welfare by allowing top earners to manipulate the economic and political system in their favour (Stiglitz 2012).
Traditional explanations for the rise of inequality in advanced economies have been skill-biased technological change and globalisation, which increase the relative demand for skilled workers. However, these forces foster economic growth, and there is little policymakers are able or willing to do to reverse these trends. Moreover, while high income countries have been similarly affected by technological change and globalisation, inequality in these economies has risen at different speeds and magnitudes.
Figure 1. Evolution of inequality measures in advanced economies
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