Inequality has become a ‘big’ topic in recent years, of concern both to economists and the public at large. This is exemplified by the popularity of Thomas Piketty’s Capital in the Twenty-First Century, and many other works. I have written on some of these studies here.
They continue to be churned out: in the July issue of the heterodox Cambridge Journal of Economics, Pasquale Tridico of Roma Tre University analyses the determinants of income inequality in 25 OECD countries between 1990 and 2013. He finds that ‘financialisation’, increased labour market flexibility, the declining influence of trade unions and welfare state retrenchment have been key to its rise.
When other factors such as economic growth, technological change, globalization and unemployment are taken into account, the above four causes remain important, and, to the extent that they can be changed as a matter of policy, they can mitigate inequality without harming economic growth. They are therefore not the full story but, for example, the negative effects of rising unemployment on inequality can be reduced if there is a strong social safety net in place. Continue reading