With the right method, aggregate indicators can provide useful estimates of basic governance concepts as well as measures of the imprecision of these aggregate estimates and their components.

Abstract: 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 quality, rule of law, and control of corruption. The latest indicators are based on hundreds of variables and reflect the views of thousands of citizen and firm survey respondents and experts worldwide. Although global averages of governance display no marked trends during 1996-2005, nearly one-third of countries exhibit significant changes [for better or for worse] on at least one dimension of governance. Three new features distinguish this update. (1) The authors have moved to annual reporting of governance estimates. This update includes new governance estimates for 2003 and 2005, as well as minor backward revisions to biannual historical data for 1996-2004. (2) The authors are, for the first time, publishing the individual measures of governance from virtually every data source underlying the aggregate governance indicators. The ready availability of the individual data sources underlying the aggregate governance indicators is aimed at further enhancing the transparency of the methodology and of the resulting aggregate indicators, as well as helping data users and policymakers identify specific governance challenges in individual countries. (3) The authors present new evidence on the reliability of expert assessments of governance which, alongside survey responses, form part of the aggregate measures of governance.

This study helps users find their way through the jungle of governance indicators, and shows how they tend to be widely misused both in international comparisons and in tracking changes in individual countries.

Abstract: The Worldwide Governance Indicators, reporting estimates of six dimensions of governance for over 200 countries between 1996 and 2005, have become widely used among policymakers and academics. They have also attracted some explicit written criticisms. In this short paper the authors synthesize 11 critiques offered by four recent papers. They then refute them as either conceptually incorrect or empirically unsubstantiated.

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.

A guide for constructing and using composite indicators for policy makers, academics, the media and other interested parties. In particular, this handbook is concerned with indicators which compare and rank country performance.

With the advance of an increasingly globalized market, the opportunities for, and scale of, corruption is growing. The size of corporations and their wealth relative to nations provides the resources for corrupt practices. The liberalization of international financial markets makes transferring and hiding the proceeds of corruption easier. Moves towards privatization in East and West are providing once-only incentives for corruption on an unprecedented scale, as officials not only deal with the income of the state, but with its assets as well. In this book, Transparency International's (TI) world-renowned 'Corruption Perception Index' (CPI) and 'Bribery Perception Index' (BPI) are explained and examined by a group of experts. They set out to establish to what extent they are reliable measures of corruption and whether a series of surveys can measure changes in corruption and the effectiveness of anti-corruption strategies. The book contains a variety of expert contributions which deal with the complexity, difficulty and potential for measuring corruption as the key to developing effective strategies for combating it.