Political institution is an important component in contemporary political science theories. What are the origins of the political institutions, and why some institutions evolve? How does various kind of political institutions affect our political behaviour, economic activities, and even daily life? This course aims to provide a comprehensive review of political institutions and behaviours. Topics include major theories of institutionalism, the origins, evolution, and development of institutions, institutional analysis of political behaviours, and discussions on some key institutions at domestic and international levels. By studying this course, students are expected to acquire the basic concepts and debates in political institutionalism and apply them to interpret and predict individual and collective behaviour and strategies worldwide. This course will also enrich students’ knowledge of the key literature and measurements in political science research.