"The authors develop and implement a method for measuring the frequency of changes in power among distinct leaders and ideologically distinct parties that is comparable across political systems. The authors find that more frequent alternation in power is associated with the emergence of better...

"Is inequality largely the result of the Industrial Revolution? Or, were pre-industrial incomes and life expectancies as unequal as they are today? For want of sufficient data, these questions have not yet been answered. This paper infers inequality for 14 ancient, pre-industrial societies using...

"The objective of the paper is to answer an often-asked question : if tariff rates are reduced, what will happen to wage inequality ? We consider two types of wage inequality : between occupations (skills premium), and between industries. We use two large data bases of wage inequality that have...

In Asia inequality in income between countries is more important than inequality within countries. In Africa, Latin America, and western Europe and North America, by contrast, there are only small differences between countries; inequality within countries is more important. And when countries...

Ideology, as proxied by a country's dominant religion, seems to be related to inequality. In Judeo-Christian societies increased democratization appears to lower inequality; in Muslim and Confucian societies it has an insignificant effect. One reason for this difference may be that Muslim and...

The gains from the transition in post-communist Russia were captured by the new managerial class, which won rents from the state in the form of privatized enterprises, state subsidies, credits, and opportunities for tax evasion. Those rents reduced state revenues that could have supported social...

The US has exceptionally high inequality of disposable household income (i.e., income after accounting for taxes and transfers). Among working-age households (those with no persons over age 60), that high level of inequality is caused by a high level of market income inequality (i.e., income...