This paper reports on the latest update of the Worldwide Governance Indicators (WGI) research project, covering 212 countries and territories and measuring six dimensions of governance between 1996 and 2007: Voice and Accountability, Political Stability and Absence of Violence/Terrorism,...

To the uninitiated, transaction costs are often mysterious at best and dubious at worst. Even among economists who use the term often, there are misunderstandings as to what transaction costs actually are. I argue that much of the transaction cost "image" is caused by the lack of a workable...

This chapter addresses the history, use and significance of the term transaction costs. Few words in the economic language have been more abused or fought over and this is shown to result from the emergence of two distinct definitions and uses. The ‘Neoclassical’ definition rests on the...

In standard models of contracts, efficient incentives require the promisor to pay damages for non-performance and the promisee to receive no damages. To give efficient incentives to both parties, we propose a novel contract requiring the promisor to pay damages for nonperformance to a third...

Algorithms (in some form) are already widely used in the criminal justice system. We draw lessons from this experience for what is to come for the rest of society as machine learning diffuses. We find economists and other social scientists have a key role to play in shaping the impact of...

The authors report on the latest version of the worldwide governance indicators, covering 213 countries and territories and measuring six dimensions of governance from 1996 until end-2005: voice and accountability, political stability and absence of violence, government effectiveness, regulatory...

Applying an indirect evolutionary approach with endogenous preference formation, we show that a legal system can induce players to reward trust even if material incentives dictate to exploit trust. By analyzing the crowding out or crowding in of trustworthiness implied by various verdict rules,...

Six new aggregate measures capturing various dimensions of governance provide new evidence of a strong causal relationship from better governance to better development outcomes. In a cross-section of more than 150 countries, Kaufmann, Kraay, and Zoido-Lobaton provide new empirical evidence of a...

The law influences the behavior of its citizens in various ways. Well understood are the direct effects of legal rules. By imposing sanctions or granting subsidies, the law either expands or contracts the horizon of opportunities within which individuals can satisfy their preferences. In this...

Updated governance indicators report estimates of six dimensions of governance for 175 countries in 2000-01. They can be compared with those constructed for 1997-98. Kaufmann, Kraay, and Zoido-Lobaton construct aggregate governance indicators for six dimensions of governance, covering 175...