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. Research question: How to raise consumers' consumption desire? 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. It divides part one and part two and part three and part four. In part one, it shall indicate how the process of behaviour economic field develops, then I shall show what methods are used to measure behavioural economy. Next, I shall indicate what the main two categories of behavioural economy are as well as I shall explain what risky and uncertain outcomes of individual behavior economic theories are as well as what behavioral game theory is. Finally, I shall explain how policy makers or decision makers can apply behavioral economy concept to do whose policy decision as well as I shall also indicate why behavioral economy and psychology which has close relationship to influence consumption of decision.