Political institutions are an important component in contemporary political science theories. What are the origins of political institutions, and why do some institutions evolve? How do various political institutions affect our political behaviour, economic activities, and even daily life? This course aims to provide a comprehensive review of political institutions and behaviour. Topics include major theories of institutionalism, the origins, evolution, and development of institutions, institutional analysis of political behaviour, and discussions on some key institutions at the 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.