Although the EU is growing ever closer as a single economic entity, the difference in wealth and economic power among its member nations - from Germany and France to Romania and Bulgaria - is still enormous. This is despite the European Union's continuous efforts to reduce welfare differences between its member states since its foundation in 1958: The long-term objective of the EU is a convergence of income and GDP per capita levels within the entire Union. This policy is known as European cohesion policy, which nowadays accounts for more than one third of the EU's total budget. The vast financial importance of the cohesion policy naturally begs two questions: Are structural funds effective in promoting economic growth? And if so, do they promote income and welfare convergence within the EU? Yet most studies so far have merely yielded fragmented results, as they only focus on single EU member states, or consist of data for short time periods. In contrast, this study captures long-term effects of structural funds in the recent past and delivers accurate and meaningful empirical results. It focuses on data for the European Regional Development Fund since this is the most important item of cohesion policy which financially supports projects that aim to foster convergence directly. In this book: - European cohesion policy; - structural funds; - European Regional Development Fund; - economic convergence; - Solow-Model; - growth theory