Book excerpt: Based on analyses of the essays written by Max Weber on China, India, ancient Judaism and also on the dispersed material about Islam, Eastern Christianity and Occidental Christianity, this book examines the economic ethics of Asian and Christian traditions and their corresponding legal systems. Drawing also on Weber's methodology (particularly the concept of adequate causation), the author reveals that the nature of Asian religions as well as the nature of customary and other not formally rational laws in Asian cultures could not lead to modern capitalism out of their own sources, although capitalism could be adopted from the outside. The culture of the Occident, upon which capitalism is based, is revealed to consist of a double rationalisation: the formal rationality of the exterior circumstances of life (administrative and legal) and the innerworldly practical rationality of the inner motivations of the Protestants, supported by a goal-oriented rational technology.