drug consumption; rational choice model for addiction?

“rational choice model” is one of the economics theories which developed into sociology, politics, and anthropology and was applied to understand and justify some phenomena.  according to this hypothesis, the basis of decision making is improvements, enjoyment and suffering disposal. people always do all necessary calculations in each and every decision making and then adopt a rational decision considering results of such calculations. current article tried to analyze first attempts of drug consumption, addiction development, volatility and recurrent course of substance abuse from the perspective of rational choice model theory.