corruption perceptions index
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What is the Corruption Perceptions Index?
The Corruption Perceptions Index (CPI) is a metric that ranks countries based on their perceived corruption levels, ranging from 0 (highly corrupt) to 10 (very clean). Transparency International, a non-governmental organization, created the index, which they have used since 1995, in order to unite business, society, and government against corruption. The CPI relies on surveys of experts and business elites, rather than the general public, to evaluate the degree of corruption among public officials and politicians, defining corruption as the abuse of public position for private gain, usually bribe taking.
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Who creates the Corruption Perceptions Index?
The Corruption Perceptions Index (CPI) is created and used by Transparency International (TI), a non-governmental organization founded in 1993. The CPI measures and ranks countries based on their perceived levels of public sector corruption, relying on surveys and assessments from business executives, risk analysts, and journalists. TI releases the CPI annually as part of its efforts to increase transparency and combat corruption worldwide.
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How does the Corruption Perceptions Index measure corruption?
The Corruption Perceptions Index (CPI) gauges the extent of corruption in different countries. It relies on surveys and assessments from experts and business leaders to measure perceived levels of corruption in the public sector, which includes government-controlled enterprises. The index, which is compiled by Transparency International, assigns scores ranging from 0 (highly corrupt) to 10 (very clean). CPI focuses on corruption among public officials and politicians, defining corruption as the abuse of public positions for private gain, primarily through bribe-taking.
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Which types of corruption does the Index focus on?
The Corruption Perceptions Index (CPI) assesses the degree of corruption among public officials and politicians, defining corruption as the abuse of public positions for private gain, primarily through bribe taking. The index is based on surveys of experts and business elites, reflecting their perceptions rather than those of the general public. Because corruption undermines the judiciary and media, the CPI serves as an alternative source of information on the extent of illegal practices among civil servants and politicians in various countries.
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Why is it important to compare corruption between countries?
Comparing corruption levels between countries, as measured by the Corruption Perceptions Index (CPI), is important because it highlights the relationship between corruption and economic development. The CPI, which is compiled by Transparency International, shows that countries with high scores (low corruption) are predominantly rich, while those with low scores are the poorest. This suggests corruption is a major impediment to sustainable development. Cross-national comparisons of corruption can also reveal how globalization facilitates kleptocracy, with kleptocrats investing illicit funds in wealthy democracies, thereby impacting governance and financial transparency worldwide.
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How can the Corruption Perceptions Index influence governments or international organizations?
The Corruption Perceptions Index (CPI) is a tool used to evaluate the degree of corruption among public officials and politicians. Transparency International, the organization that created the CPI, believes that corruption creates and perpetuates poverty, weakens democracy, and distorts international trade.
The CPI focuses on the public sector and evaluates the degree of corruption among public officials and politicians. The results consistently show that the countries with the highest scores are predominantly rich countries, while the countries with the lowest scores are the poorest ones. This relationship between a country’s level of economic development and its level of corruption led Transparency International to conclude that corruption is one of the key obstacles to sustainable development.
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corruption perceptions index (CPI), measure that rates countries on the basis of their perceived level of corruption, on a scale from 0 (highly corrupt) to 10 (clean). The CPI was created and used by Transparency International, an international nongovernmental organization established in 1993 with the aim of bringing together business, civil society, and government structures to combat corruption. The index was first used in 1995, and it covers a growing number of countries in annual surveys.
The CPI is based on surveys of domestic and international business executives, financial journalists, and risk analysts. Therefore, it reflects the perceptions of experts and business elites, not of the general public. It represents average scores from several polls and surveys for each respective country from the two years prior to its release and the year of release (e.g., CPI 2004 was based on sources from 2002, 2003, and 2004). The minimum number of surveys used for each country is three, while some countries are evaluated with the use of as many as 14 to 15 surveys.
The CPI focuses on the public sector and evaluates the degree of corruption among public officials and politicians. Corruption is defined as an abuse of public position for private gain, which in practice usually means bribe taking. Because in corrupt countries the quality and independence of the judiciary and media are usually low, official statistics on corruption exposure and prosecution underestimate the level of corruption in more-corrupt countries. The CPI, being based on evaluations, is a valuable alternative source of information about the degree of illegal practices among civil servants and politicians in a given country.
There are some methodological problems related to CPI data reliability and comparability. While the information about the cross-national levels of corruption is compiled annually using a number of reliable and established sources—such as the European Bank for Reconstruction and Development (EBRD)–World Bank Business Environment and Enterprise Performance Survey, The Economist’s Country Risk Service and Country Forecast, or Freedom House’s Nations in Transit—the exact set of sources used for a country’s evaluation and the wording of the questions put to experts vary from year to year, making an actual net change in the level of perception of corruption difficult to precisely estimate. Second, large differences in values given to a country by different sources (which are reflected by a high standard deviation of a CPI score), especially combined with a low number of surveys used for a country, signal a low reliability of an estimate. However, great care is taken to ensure the highest possible quality of sources and methodology used. Therefore, CPI is a reputable index widely used by academics, economists, journalists, and business executives.
The results consistently show that the countries with the highest scores (9 or higher) are predominantly rich countries, while the countries with the lowest scores are the poorest ones. This relationship between a country’s level of economic development and its level of corruption led Transparency International to conclude that corruption is one of the key obstacles to sustainable development.

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