This book is concerned how to apply behavioral economy method to predict consumer behavior. Also I shall compare to explain what advantages and disadvantages between any one of my solvable suggestions and the any one of the company's choice of solvable method to these any one sample industry consumer behavioral economic challenges to aim to let any reader to judge whether how to choose the solvable method is better. In, conclusion, this book can provide sample industries to let students to learn how to behavioral economy method to predict consumer behaviors. In Behavioral economics part, it can provide more realistic psychological foundations. This book is intended to explain why consumer behaviors and economy has close relationship and apply economic concept to explain how the consumer chooses to do whose consumption of decision.