The Rationality of Addiction

Zhang Chong, Haoping Liu, Hyoung Jun Kim, Qian Wu, Samuel Xie

Abstract


This paper presents a discussion on the rationality of addiction using economic theories. Drug abuse is the dominant context for addict ion in this paper. However, it does not preclude a broader definition, encapsulating dependence on substances other than pharmacological agents; let it be nicotine , alcohol, coffee, chocolates or sex. The argument follows the progression in rationale from consumption to addiction to eventual remission. The economics of any behaviour, addiction-motivated or otherwise, distils down to the scarcity of means and our intuitions of opportunity costs involved in making a choice. The two concepts are interrelated. The process of decision-making weighs the benefit of each choice (its marginal utility) against its opportunity cost. In utility maximization theory, money is a scarce resource assumed important for maximizing utility. Therefore, choice on consumption is decided by the relative price between two goods. Overall utility is maximized when the ratio of the prices of two desired goods is equal to their marginal rate of substitution – the ratio of their marginal utilities. That is, the objective or source of utility for a consumer is to maximi ze the total value of their available money.

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DOI: http://dx.doi.org/10.21153/dpibe2009vol2no2art192

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