This paper is motivated by a practical income (or wealth) taxation problem: For a public good economy where the provision of public goods is to be financed by income taxes collected from individuals, what is the optimal feasible tax mechanism when a social planner is relatively uninformed of the...

In this article we write a two period taxation model where: \QTR{it}{i)} private information changes through time; \QTR{it}{ii)} savings choices by an agent that are not observed, \QTR{it}{iii)} affect preferences conditional on the realization of types. The simultaneous appearance of these three...

This paper models individual choices of social groups and the formation of group identity, and examines the conditions with which the group identity reinforces the productivity of individuals. A social group is defined as a network that provides with a market for interactions to its members....

In an abstract model of division problems, we study division rules that are not manipulable through a reallocation of individual characteristic vectors within a coalition (e.g. reallocation of claims in bankruptcy problems). A coalition can be formed if members of the coalition are connected on...

This paper investigates the properties of optimal monetary and fiscal policy in a two sector small open economy. If the government can optimally select all possible distorting tax rates, then it can implement Pareto efficient outcomes and the Friedman Rule is found to be a necessary condition...

We consider competitive bidding for a business license, via an open ascending-price auction, between two symmetric incumbents and a potential entrant, each of whom is privately informed about her own valuation of the license. Entry stands to reduce the payoff of each incumbent below that in...

This paper studies the role of bundling in the efficient provision of excludable public goods. We show that bundling in the provision of unrelated public goods can enhance social welfare. With a large number of goods and agents, first best can be approximated with pure bundling. For a parametric...

According to globalization, certain kinds of public goods, which used to be working as the goods just in a national economy, are getting internationalized or released for foreigners as well. In addition, those goods often exhibit differentiated features for a certain degree. The goods as such...

Microfinance programmes provide poor people with small loans given to jointly liable self-selected groups. Follow-up loans provide incentives to repay. In an experiment we investigate the influence of those features on strategic default. Each group member invests in an individual risky project,...

We conduct an experiment to explore the durability and transferability of the increase in contributions to a public good resulting from the existence of a particular type of implicit informal sanction. Rege and Telle (2003) find that in one-shot games, the sanctioning system leads to high...