We survey and assess the literature on the positive and negative effects of ethnic diversity on economic policies and outcomes. Our focus is on both focus both cities in developed countries (the US) and villages in developing countries. We also consider the endogenous formation of political...

Policies are typically chosen by politicians and bureaucrats. This paper investigates the e fficiency criteria for allocating policy tasks to elected policymakers (politicians) or non elected bureaucrats. Politicians are more efficient for tasks that do not involve too much specific technical...

We use data on announced and actual exchange rate arrangements to ask which countries follow de facto regimes different from their de iure ones, that is, do not do what they say. Our results suggest that countries with poor institutional quality have difficulty in maintaining pegging and abandon...

One commonly held view about the difference between continental European countries and other OECD economies, especially the United States, is that the heavy regulation of Europe reduces its growth. Using newly assembled data on regulation in several sectors of many OECD countries, we provide...

Different beliefs about how fair social competition is and what determines income inequality, influence the redistributive policy chosen democratically in a society. But the composition of income in the first place depends on equilibrium tax policies. If a society believes that individual effort...

We provide new measures of ethnic, linguistic and religious fractionalization for about 190 countries. These measures are more comprehensive than those previously used in the economics literature and we compare our new variables with those previously used. We also revisit the question of the...

As the number of independent countries increases and their economies become more integrated, we would expect to observe more multi-country currency unions. This paper explores the pros and cons for different countries to adopt as an anchor the dollar, the euro, or the yen. Although there appear...

Political institutions influence economic policy, but they are themselves endogenous since they are chosen, in some way, by members of the polity. An important aspect of institutional design is how much society chooses to delegate unchecked power to its leaders. If, once elected, a leader cannot...

We construct a set of indicators to measure the policy-making role of the European Union (European Council, Parliament, Commission, Court of Justice, etc.), in a selected number of policy domains. Our goal is to examine the division of prerogatives between European institutions and national...

We study the organization of federations - or international unions - which decide together the provision of certain public goods. The benefit of centralization depends on the internalization of the spillovers, that of decentralization on the adaptability to local differences. We individuate as...