This article considers the transformation of the political system as countries pass through the Grand Transition from being a poor developing country to a wealthy developed country. In the process, most countries change from an authoritarian to a democratic political system, as measured by the...

Religiosity is defined as the importance of religion in all aspects of life. The definition is operationalized into a robust measure by aggregating 14 items from the World Values Surveys. Religiosity falls by 50 % when countries pass through the transition from being underdeveloped to becoming...

Prehistoric measures of biogeography are used as instruments for modern income levels. We find that our instrumented incomes explain the cross-country pattern of corruption just as well as actual incomes, so the long-run causality appears to be entirely from income to corruption.

We consider the empirical relevance of two opposing hypotheses on the causality between income and democracy: The Democratic Transition hypothesis claims that rising incomes cause a transition to democracy, whereas the Critical Junctures hypothesis denies this causal relation. Our empirical...

The purpose of this article is to introduce the technique and main findings of meta-analysis to the reader, who is unfamiliar with the field and has the usual objections. A meta-analysis is a quantitative survey of a literature reporting estimates of the same parameter. The funnel showing the...