How well does competitive theory explain the outcome in experimental markets. The authors examined the results of a large number of classroom trading experiments that used a pit-trading design found in <italic>Experiments with Economic Principles</italic>, an introductory economics textbook by Bergstrom and...

<title>Abstract</title> The author describes techniques that he uses to interactively teach economics principles. He describes an experiment on market entry and gives examples of applications of classroom clickers. Clicker applications include (a) collecting data about student preferences that can be used to...

The net present value of costs and benefits from a pay-as-you-go social security system are negative for young people and positive for the elderly. If people all vote their financial selfinterest, there will be a pivotal age such that those who are younger favor smaller social security benefits...

We study three different models in which public goods are supplied by private contributions. In one of these models, tax-financed government subsidies to private contributions will definitely increase the equilibrium supply of public goods. In the other two models, government subsidies are...

The net present value of costs and benefits from a pay-as-you-go social security system are negative for young people and positive for the elderly. If people all vote their financial self-interest, there will be a pivotal age such that those who are younger favor smaller social security benefits...

Stem cell transplants save lives of many patients with blood diseases. Donation is painful, but rarely has lasting adverse effects. Patients can accept transplants only from donors with compatible immune systems. Those lacking a sibling match must seek donations from the general population. The...

How should benefit-cost analysis account for the value that benevolent individuals place on other people's pleasure from public goods? When adding up the benefits to be compared with costs, should we sum the private valuations, the altruistic valuations, or something else? This paper proposes a...