Is Internet security a public good? How should society handle the spill-over effects arising from the interrelatedness of Internet risks? What role, if any, does police enforcement play? What optimal combination of each of these security measures – police enforcement, and individual...

We state efficiency conditions for the provision of congestable local public goods that diminish individual-specific proprietary risks. The optimum level of such a public service is determined by equating the sum of the reductions of the expected property losses due to a better service level...

We use a laboratory experiment to identify the impact of risk in the private and public dimensions of social investments. In variants of a public good game, we separate the return a subject's investment generates for herself vs. the return to others. We find a detrimental effect of risk on...