In developing countries, traditional social obligations often press rich individuals to share their income. In this paper, we posit a "model of social pressure" in which people can sign binding financial agreements amongst themselves, thereby forming coalitions. These financial agreements may...

The purpose of this paper is to offers insight for evaluating research and development in diagnostic tests. We show that a rational policy maker perfectly informed about health risks may choose to reduce investment in prevention when efficient diagnostic tests become available. We show that...