General questions about poverty -- The causes of poverty -- Who are the poor? -- What are "welfare" and "social welfare?" -- Controversies over "welfare" -- Homelessness (and hunger) in the United States -- Coda -- Index -- About the author.

While Internet users claim to be concerned about online privacy, their behavior rarely reflects those concerns. In this paper we investigate whether the availability of comparison information about the privacy practices of online merchants affects users’ behavior. We conducted our study using...

Nudges are simple and effective means to help people make decisions that could benefit themselves or society. However, effects of nudges are limited to local maxima, as they are almost always designed with the “average” person in mind, instead of being customized to different individuals....

Computer security problems often occur when there are disconnects between users' understanding of their role in computer security and what is expected of them. To help users make good security decisions more easily, we need insights into the challenges they face in their daily computer usage. We...