To the Editor: Those who oppose mandating vaccination against human papillomavirus (HPV) as a condition for school entry generally open the debate with two fundamental questions. First, how can the government interfere in the medical decisions parents make for their children by compelling immunizations for school entry? Second, how can the HPV vaccine be a good candidate for school mandates whe...

Despite a diversity of cultural, social and economic experiences with alcohol at national level, a broad unity of purpose is emerging within the alcohol problems perspective. The scientific basis for that perspective finds its support in a sustained international research effort. With the publication in 1994 of the WHO report "Alcohol Policy and the Public Good", that perspective has been given...

Axelrod (The evolution of cooperation, 1984) and others explain how cooperation can emerge in repeated 2-person prisoner’s dilemmas. But in public good games with anonymous contributions, we expect a breakdown of cooperation because direct reciprocity fails. However, if agents are situated in a social network determining which agents interact, and if they can influence the network, then coopera...

In many important public good situations the decision-making power and authority is delegated to representatives who make binding decisions on behalf of a larger group. The purpose of this study is to compare contribution decisions made by individuals with contribution decisions made by group representatives. We present the results from a laboratory experiment that compares decisions made by in...

We study a continuous-time problem of optimal public good contribution under uncertainty for an economy with a finite number of agents. Each agent can allocate his wealth between private consumption and repeated but irreversible contributions to increase the stock of some public good. We study the corresponding social planner problem and the case of strategic interaction between the agents and ...

The public goods game represents a straightforward generalization of the prisoner's dilemma to an arbitrary number of players. Since the dominant strategy is to defect, both classical and evolutionary game theory predict the asocial outcome that no player contributes to the public goods. In contrast to the compulsory public goods game, optional participation provides a natural way to avoid dead...