I shall explain how to apply behavioral economic method to build consumer confidence is as a predictor of consumption spending. I shall also explain what confidence in consumption survey means and I shall apply behavioral economy method to explain how and why to apply survey to gather data in consumption market. It can measure how much degree of confidence of overall clients to the brand of product or service as well as how to build consumer confidence to buy the brand of product or consume the brand of service as well as I shall also explain what a confidence indicator means and how to apply confidence indicator to predict how many potential consumers will choose to buy the brand of product or consume the brand of service.