Abstract
Taiwan is a mildly divided society—divided essentially along the lines of national identity. Indeed, there is no doubt that national identity is the dominant factor affecting Taiwan’s mainland China policy. Other factors such as business interests and security concerns may enter the picture from time to time, but they often get bogged down in the national identity controversies. As a matter of fact, there is high correlation between people’s attitudes toward business and security concerns and their positions on the national identity issue. The key to understanding Taiwan’s mainland China policy is thus the distribution of voters on the national identity issue and how it is translated into the political fortunes of various political parties in the electoral game.