We consider four models of consumption that differ with respect to efficient risk-sharing and altruism. They range from complete markets with altruism to family risk-sharing. We use a matched sample of parents and independent children available from the Panel Study of Income Dynamics to...

This paper studies the cross-country patterns of risky innovation and growth through the lens of international trade. We use a simple theoretical framework of risky quality upgrading by firms under varying levels of financial development to derive two predictions. First, the mean rate of quality...

In what follows we provide a conceptually correct procedure for determining whether a risky project passes the "potential Pareto improvement" welfare criterion which forms the normative basis of cost-benefit analysis. In this approach the role of secondary markets in providing opportunities for...

Asset prices set in a competitive market need not be martingales; that is, it need not be true that the best predictor of future prices is the current price. Nonetheless, statistical tests for this property are sometimes treated as tests for the proper functioning of an asset market; asset...

Illicit trade in counterfeit goods causes economic damage by reducing sales and profits as well as innovation incentives in legitimate industries. At the same time, some counterfeits can be of low quality and create significant additional risks, including health risks (fake pharmaceuticals or...

Between 1810 and 1939, real per capita spending on patent medicines grew by a factor of 114; real per capita GDP by a factor of 5. The long-term growth and survival this industry is puzzling when juxtaposed with standard historical accounts, which typically portray patent medicines as quack...

This paper reports estimates for the ex ante tradeoffs for three specific homeland security policies that all address a terrorist attack on commercial aircraft with shoulder mounted missiles. Our analysis focuses on the willingness to pay for anti-missile laser jamming countermeasures mounted on...

The relationship between environment and children’s health has been the subject of increasing interest these last ten years. For example, many OECD member countries are reporting asthma epidemics exacerbated by air pollution: in the United States nearly 1 in 13 school-age children...

Share price indices are calculated from the prices of common shares of companies traded on national or foreign stock exchanges. They are usually determined by the stock exchange, using the closing daily values for the monthly data, and normally expressed as simple arithmetic averages of the...