U4 Anti-Corruption Resource Centre

This Anti-Corruption Helpdesk brief was produced in response to a query from a U4 Partner Agency. The U4 Helpdesk is operated by Transparency International in collaboration with the U4 Anti-Corruption Resource Centre based at the Chr. Michelsen Institute.


Please provide an updated overview of the various corruption measurements, with a particular focus on how to use them, their strengths and their limitations.


To provide an overview of the strengths and limitations of the various tools and indexes.


  1. Aggregate indexes
  2. Expert country assessments
  3. Public opinion surveys
  4. Business surveys
  5. Company assessments
  6. Further reading


This paper provides an overview of a number of publicly accessible tools to assess a country’s level of corruption or anti-corruption/good governance performance. The tools are based on both qualitative and quantitative country data, and cover corruption perception, anti-corruption and good governance legal and institutional frameworks as well as their implementation. The tools are classified according to the methods they employ.

The paper is an updated version of the 2013 How-to guide for corruption assessment tools.


Andy McDevitt, Transparency International, [email protected]


Marie Chêne, Transparency International, [email protected]




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