In addition to his role as a consumer pursuing his own interests, an individual may also regard himself as an ethical observer or citizen, judging matters from society's point of view. However, an individual's personal preferences do not necessarily coincide with his social preferences. This...

Social norms affect environmental quality. But what exactly is a social norm? Environmental economists studying the topic draw on diverse scholarly traditions and may not have the same phenomenon in mind when using the concept. For example, social norms may refer to common, but not necessarily...

International climate negotiations have been troubled by mutual mistrust. At the same time, a hope seems to prevail that once enough countries moved forward, others would follow suit. If the abatement game faced by climate negotiators is a Prisoners' Dilemma, and countries are narrowly...

It is sometimes claimed that individuals' contributions to public goods are not motivated by economic costs and benefits alone, but that people also have a moral or norm-based motivation. A number of studies indicate that such moral or norm-based motivation might be crowded out, or crowded in,...

In public good games, voluntary contributions tend to start off high and decline as the game is repeated. If high contributors are matched, however, contributions tend to stay high. We propose a formalization predicting that high contributors will self-select into groups committed to charitable...

This paper explores both theoretically and empirically whether or not the willingness to pay (WTP) for pollution control varies with income. Our model indicates that the income elasticity of the marginal WTP for pollution reduction is only constant under very restrictive conditions, which are...

This paper tests whether changes in 'incidental emotions' lead to changes in economic choices. Incidental emotions are experienced at the time of an economic decision but are not part of the payoff from a particular choice. As such, the standard economic model predicts that incidental emotions...

This paper develops a choice model for environmental public goods which allows for consumers to learn about their preferences through consumption experiences. We develop a theoretical model of Bayesian updating, perform comparative statics over the model, and show how the theoretical model can...

The assumption of the stability of preferences is a fundamental one in the theory of the consumer. Many papers within the stated preferences literature have tested this assumption, and have found mixed results. Individuals may become more sure of their preferences as they repeat a valuation task...