Foreign banks are playing an increasingly large role in many developing countries, holding more than 50 percent of banking assets in several of these countries. But important issues about foreign bank entry continue to be debated.In recent years foreign bank participation has increased tremendously in several developing countries. In Argentina, Chile, the Czech Republic, Hungary, and Poland, for example, more than 50 percent of banking assets are now in foreign-controlled banks. In Asia, Africa, the Middle East, and the former Soviet Union the rate of entry by foreign banks has been slower, but the trend is similar.Although the number of countries welcoming foreign banks is growing, many questions about foreign bank entry are still being debated, including:ʼn What draws foreign banks to a country?ʼn Which banks expand abroad?ʼn What do foreign banks do once they arrive?ʼn How does the mode of a bank's entry - for example, as a branch of its parent or as an independent subsidiary company - affect its behavior?Clarke and his coauthors summarize current knowledge on these issues. In addition, since the existing literature focuses heavily on industrial countries, they put forth an agenda for further study of the effects of foreign bank entry in developing countries.This paper - a product of the Office of the Senior Vice President, Development Economics - is a background paper for World Development Report 2002: Institutions for Markets. The authors may be contacted at [email protected], [email protected], [email protected], or [email protected].