Why is religion so widespread? Why do individuals donate large amounts of time, money, and effort to religious groups? What forms does the religious competition take? Why are individuals more religious in some countries than others? What is the future of religion?This book provides a non-technical introduction to how the economic approach answers these and other questions about religion. It defines the economic approach to religion and demonstrates how it is used to study a variety of religious decisions. It explains how religious groups confront credibility, free-rider, and...