This paper throws new light on the relationship between income and democracy. Using data for 162 countries over 1960-2018, we show that the causal relationship between political and economic development is U-shaped: "intermediate" political regimes significantly lead to inferior economic...

The present note raises the issue of how best to interpret the World Bank's (WB) much used "constant USD per capita income" concept and similar series. We find that the guide to its construction appearing on the WB data portal to be sketchy. The procedures essentially convert all host-country...