Happiness Economics deals with the concept of happiness in economics. Most economists until recently were very suspicious about happiness economics and the common opinion was that happiness is not empirically measurable. Actually there is now a growing body of serious economists who are willing, either reluctantly or wholeheartedly, to include happiness economics as a part of economic science. For a better understanding of happiness economics, the authors examine the viewpoint of mainstream economics in the introduction. Section 2 starts by considering the methods of analysis in happiness...