While most Asian countries have initiated various anti-corruption measures during the past 60 years, their effectiveness in curbing corruption has been mixed, with few success stories and many failures. Why is corruption still a serious problem in many Asian countries in spite of their anti-corruption efforts? How effective are the anti-corruption measures initiated in these countries? What are the strengths and weaknesses of these anti-corruption measures? Can anything be done to enhance these measures? What accounts for the different levels of effectiveness of the ACAs in Asian countries after more than six decades of their reliance on these agencies to curb corruption? This ebook attempts to answer all the above questions with papers focusing on the anti-corruption measures in China, Japan, Philippines, Singapore and Taiwan. Authors describe the anti-corruption prevention measures and official bodies present in these five countries and discuss their current effectiveness and ways in which they can be improved.