Computer users express a strong desire to prevent attacks, and to reduce the losses from computer and information security breaches. However, despite the widespread availability of various technologies, actual investments in security remain highly variable across the Internet population. As a result, attacks such as distributed denial-of-service…

My dissertation contains three studies centering on the question: how to motivate people to share high quality information on online information aggregation systems, also known as social computing systems? I take a social scientific approach to "identify" the strategic behavior of individuals in information systems, and "analyze" how non-monetary…