Corruption Perception Index (CPI)
The Corruption Perception Index (CPI), just as the Global Corruption Barometer (GCB), is a benchmarking indicator. It helps us reach the core of the problem that corruption stands for and allows us to recommend different policy approaches that can lead to the reduction of its levels. Furthermore, through its results and offered data succours us on proposing best practices to address corruption.
The importance of these two indexes lies particularly in the definition of the term benchmarking. Benchmarking is concerned with finding and implementing best practices (Bullivant, 1994, p. 7); isthe ongoing, systematic process to search for and introduce international best practice into an organisation(Australian Manufacturing Council, 1994).
As such a benchmarking indicator, the CPI is the index that ranks the countries worldwide since 1995, according to how corrupt a country’s public sector is perceived to be. The CPI Index is based on perceptions of corruption and not actual hard empirical data or justified incidents of corruption.The reason behind this is that the CPI Index aims to investigate the corruption levels of a country and not how effectively or not the judiciary system operates.
The data used for the CPI Index to be conducted emanate from independent institutionsspecializing in governance and business climate analysis. Of course all the data and the sources used are examined in depth so that they meet the TI’s quality standards.
Last but not least, attention should be paid to the ranking of CPI Index. Up until 2011 the scale of ranking was between 0 and 10, where 0 represents the highly corrupted while 10 the highly transparent. From 2012 and on there was a change in methodology and the ranking is between 0 and 100 with 0 again representing the highly corrupted and 100 the highly transparent. However attention must be paid since the two methodologies are not homogenous so the results of previous years can’t be compared with the ones of 2012 or 2013 (Transparency International, Corruption perception Index: In Detail - FAQs)
Global Corruption Barometer(GCB)
The Global Corruption Barometer is another important benchmarking indicator that TI conducts in a yearly basis. It is considered to be worldwide the biggest survey on corruption that is based on public opinion. It investigates corruption in both public and private sector in a country; depicts the personal experiences of people regarding their exposure to corruption. Attention is paid in the choices of the samples it uses, so as to be representative of the population of each country. Its ranking is between 1 and 5 where 1 here stands for the highly transparent while 5 for the highly corrupted (Transparency International, Global Corruption Barometer: In Detail).