This course (Seminar on Political and Economic Interaction Across Taiwan Strait) introduces the political and economic interaction between Mainland China and Taiwan since 1949. It covers a wide range of topics which can be divided into three parts. The first part deals with the economic interaction between Mainland China and Taiwan, including topics such as trade, investment, production network, and people mobility. The second part deals with the political foundation of Cross-Strait economic relation, including topics such as comparing capitalism across the Strait, Taiwan identity, Chinese nationalism, and political development in Hong Kong. The third part deals with the grand strategy adopted by either side of the Strait, including topics such as Mainland China’s Taiwan policy, Taiwan’s Mainland China policy, U.S. Cross-Strait policy, Taiwan’s international space, and the future of Cross-Strait relations.