Why do so many people volunteer to help others in need in society today? What makes people give up the convenience of driving their car to benefit a better environment? And why are citizens, in general, quite prepared to pay taxes to ensure adequate health care, and support for the elderly and unemployed? These are examples of a more fundamental question addressed in this book: why do people cooperate for the welfare of their community, state, or organization? Cooperation in Modern Society is a unique collection of contributions from internationally reputed scholars across the social sciences.