Subjective Measurement Methods and of Corruption Degree and Their Analysis——Taking Bertelsmann Transformation Index as an Example
Measurement of corruption degree is fundamental in evaluating the effectiveness of corruption governance and conduct-ing high-quality empirical research.Nowadays,there are two main methods for measuring the degree of corruption:subjective measurement and objective measurement,the most influential subjective measurement method being the Corruption Perceptions Index.Exploring the process of measuring the degree of corruption in the Corruption Perceptions Index,analyzing its limitations and reasons for inaccuracy,is of great significance for the innovation and development of corruption measurement methods.The Bertelsmann Transformation Index is an important data source for Corruption Perceptions Index.It mainly evaluates the degree of corruption prevention and punishment in the form of a 10-point system for the two dimensions of"Democracy"and"Governance"through five steps of national assessment,preliminary review,regional review,mutual inspection in different regions,and proof-reading,together with two specific corruption measurement questions,its reliability and validity high.However,the index has al-ways had limitations and measurement inaccuracies due to issues such as expert selection bias and western values bias.In the fu-ture,the quality of subjective corruption measurement methods should be improved by updating corruption measurement methods and improving the representativeness of scoring experts.