This paper introduces and characterizes the number-sensitive critical-level generalized utilitarian family of population principles which is a generalization of the critical-level generalized-utilitarian family. Number-sensitive critical-level utilitarian principles rank alternatives by using a...

We provide a characterization of selection correspondences in two-person exchange economies that can be core rationalized in the sense that there exists a preference profile with some standard properties that generates the observed choices as the set of core elements of the economy for any given...

We show that if patent protection and trade secrecy generate asymmetricmarket structure, an innovator may prefer patent protection than trade secrecy even ifthe diffusion probability is higher under the former but it increases marketconcentration by preventing some imitators...

We extend the simple model of voluntary public good provision toallow for two or more public goods, and explore the new possibilitiesthat arise in this setting. We show that, when there are many publicgoods, voluntary contrib...