Since 1996 the World Bank Institute and the Research Department of the World Bank have been developing six governance indicators called the "Worldwide Governance Indicators" (WGI). The six dimensions of governance include "control of corruption" measuring perceptions on corruption. Based on the literature review as well as the data itself this paper concludes that the conceptual and empirical issues on building gover nance indicators constitute an ongoing project. The accuracy in comparing governance over time and across countries through the aggregate indicators remains somehow unreliable. This is mainly due to the fact that the WGI are based on perceptions data. Moreover, each data source used to construct the WGI focuses on different concepts or aspects related to each indicator. Thus, the aggregation model may not be able to control for each specific situation.