Transparency International


Transparency International (TI) is a non-governmental organisation addressing corruption. The organisation was established in 1993 in Berlin, Germany, and consists of national boards (independent, local organisations), the International Secretariat (coordination and knowledge management centre), and the Board of Directors (governing body). TI works to reduce corruption around the world.


  1. Corruption Perceptions Index
    The TI CPI is the most well-known and widely used dataset from Transparency International. The composite index measures perceived corruption among public officials and politicians.
  2. Global Corruption Barometer
    The TI GCB is a yearly poll of the general public on perceived corruption among public officials in the respondents’ home country.
  3. Bribe Payers Index
    Contrary to the CPI and BPI, the TI BPI evaluates the supply side of corruption – the propensity of firms from industrialised countries to bribe abroad. The first edition was published in 2002, and the second one in 2006.

Due to the short time span and low publishing frequency of the TI BPI, the index is not examined here.

Global Corruption Barometer


Transparency International


PDF, Excel, On-screen tables




2010: 83

Last reviewed


Data types and sources

The TI Global Corruption Barometer is a public opinion survey (i.e., a poll of the general public, not of experts). While the Global Corruption Barometer is a source of micro data, it is still included in the MacroDataGuide as it can be of use as a contextual indicator. Also, due to the inherent secret nature of corruption there is little macro data available.

Data download

TI - Global Corruption Barometer


The Global Corruption Barometer is a public opinion poll conducted for Transparency International by Gallup, which assesses general public attitudes towards and experience of corruption in selected countries around the world.

Geographical coverage

The 2010 edition includes 83 countries, up from 45 countries in the start in 2003. There is some lack of consistency with regards to which countries are included in the survey each year. Since the first edition in 2003, some countries have been added, omitted and added back to the list. During the six years the survey has been made, close to 100 countries have been surveyed on at least one occasion.

Time coverage and updates

First data are from 2003, and the barometer has been published annually since then, with exception of 2008. Last update: 2010.


A full list of survey sources, details on questions asked and number of respondents are provided online for all of the editions of the GCB. For the 2010 version of the dataset, see the Full Report for metadata.

Access conditions and cost

Available free of charge.

Access procedures

Predefined tables. Users may only download separate lists for each yearly edition, and there is no option of constructing tables on your own.

Data formats

On-screen tables. Download available in excel and PDF format.

Comparability and data quality

Not examined in detail. In contrast to the CPI, the Global Corruption Barometer is comparable from year to year. The GCB is the only worldwide public opinion survey on perception and experience with public corruption. All though it does not cover all countries, it does cover all regions to some extent.

Electronic resource

Transparency International publications


Rydland, Lars Tore, Sveinung Arnesen and Åse Gilje Østensen. 2008. Contextual data for the European Social Survey. An Overview and assessment of extant resources. NSD Report No.124, Norwegian Social Science Data Services (NSD).