How is the 2009 CPI produced?
The 2009 CPI is produced by the Transparency International Secretariat in Berlin. TI gathered the data, liaised with experts on the method, and calculated the Index. In past years, this work was carried out by a consultant and senior adviser to TI. TI has a rigorous process for cross-checking final results, in collaboration with a number of experts from leading universities and institutes. As in years past, advice on the CPI methodology was provided by TI’s Index Advisory Committee (http://transparency.org/policy_research/surveys_indices/about). In addition, in 2009 a group of experts both advised TI during the calculation phase and reviewed the production of the Index: Andrew Gelman (Columbia University), Rajshri Jayaraman (European School of Management and Technology), Meghan O’Malley Berry (Columbia University), Piero Stanig (London School of Economics) and Andreas Stephan (JIBS, Jönköping University; CESIS, KTH Stockholm). Catherine Muller and Marc Vothknecht (DIW Berlin – German I