The paper examines the link between poverty, the middle class and institutional outcomes using a new cross-country panel dataset on the distribution of income and expenditure. It uses an econometric methodology to gauge whether a larger middle class has a causal effect on policy and...

In the 2000s, global inequality fell for the first time since the Industrial Revolution, driven by a decline in the dispersion of average incomes across countries. Between 1988 and 2008, a period of rapidly increasing global integration, income growth was largest for the global top 1 percent and...

Social welfare functions that assign weights to individuals based on their income levels can be used to document the relative importance of growth and inequality changes for changes in social welfare. In a large panel of industrial and developing countries over the past 40 years, most of the...