Please provide an updated overview of the various corruption measurements, with a particular focus on how to use them, their strengths and their limitations.
Summary
This Helpdesk Answer provides an overview of publicly accessible tools that assess a country’s level of corruption or its performance in controlling corruption and adhering to good governance benchmarks. The paper also includes tools that relate to the enabling environment and measure variables such as transparency, civic space or press freedom believed to reduce the risk of corruption.
These assessment tools draw on a range of qualitative and quantitative data sources, including composite indexes, expert appraisals, experience- and perception-based survey instruments and in some cases administrative data.