Lewis ascribes the stubborn persistence of addictions to habit, itself a normal process that does not imply lack of responsiveness to motivation. However, he suggests that more dynamic processes may be involved, for instance that “our recurrently focused brains inevitably self-organize.” Given hyperbolic delay discounting, a reward-seeking internal marketplace model describes two processes, also normal in themselves, that may give rise to the “deep attachment” to addictive activities that he describes: People learn to interpret current choices as test cases for (...) how they can expect to choose in the future, thus recruiting additional incentive against a universal tendency to temporarily prefer smaller, sooner to larger, later rewards. However, when this incentive is not enough, the same interpretation creates incentive to abandon the failed area, leading to the abstinence violation effect and a localized weak will. Normal human value does not come entirely, or even mainly, from expectation of external rewards, but is generated endogenously in imagination. Hyperbolic discounting provides an account of how we learn to cultivate the hedonic importance of occasions for endogenous reward by building appetite. In this account, expectations of the far future have to be rewarded endogenously if they are be as important as currently rewarded alternatives; and this importance is prone to collapse. Both will and hedonic importance are recursive and thus hard to study by controlled experiment, but do represent modelable, reward-based hypotheses about the dynamic nature of habit. (shrink)

Why do consumers who profess to be concerned about the environment choose not to buy greener products more regularly or even at all? This study explores how consumers’ perceptions towards green products, consumers and consumption practices contribute to our understanding of the discrepancy between green attitudes and behaviour. This study identified several barriers to ethical consumption behaviour within a green consumption context. Three key themes emerged from the study, ‘it is too hard to be green’, ‘green stigma’ and ‘green reservations’. (...) There is currently a perception, based on a number of factors, that it is too hard to be green, which creates a barrier to purchasing green products. Furthermore, some consumers were reluctant or resistant to participate in green consumption practices due to their unfavourable perceptions of green consumers and green messages. This article suggests that green perceptions may influence consumers’ intention to purchase green products. Accordingly, it discusses the implications, and suggests avenues for future research. (shrink)

Although many scientists and engineers insist that technologies are value-neutral, philosophers of technology have long argued that they are wrong. In this paper, I introduce a new argument against the claim that technologies are value-neutral. This argument complements and extends, rather than replaces, existing arguments against value-neutrality. I formulate the Value-Neutrality Thesis, roughly, as the claim that a technological innovation can have bad effects, on balance, only if its users have “vicious” or condemnable preferences. After sketching a microeconomic model for (...) explaining or predicting a technology’s impact on individuals’ behavior, I argue that a particular technological innovation can create or exacerbate collective action problems, even in the absence of vicious preferences. Technologies do this by increasing the net utility of refusing to cooperate. I also argue that a particular technological innovation can induce short-sighted behavior because of humans’ tendency to discount future benefits too steeply. I suggest some possible extensions of my microeconomic model of technological impacts. These extensions would enable philosophers of technology to consider agents with mixed motives—i.e., agents who harbor some vicious preferences but also some aversion to acting on them—and to apply the model to questions about the professional responsibilities of engineers, scientists, and other inventors. (shrink)