Learning Demand and Supply Relationship  (English, Paperback, Lok John)

In our societies , any kinds of products or services must need to apply demand and supply economic theory to analyze whether the kind of product or service may be value to invent to sell or serve to their customers in consumer market. However, whether your product or serive's demand number depends on supply number or your product or service's supply number depends on demand number in order to make ths sale price is reasonable high or low level and reasonable supply number valuation. I shall apply behavioral economic view to explain whether supply and demand have close relationship as well as whether consumer behavior influences either social environment to the product demand and suppy changes or social environment influences consumer behavior to the product demand and supply changes.