This paper develops a theory of sequential lending in groups in micro-finance that centers on the notion of dynamic incentives, in particular the simple idea that default incentives should be relatively uniformly distributed across time. In a framework that allows project returns to accrue over...

This paper examines coalition-proof Nash equilibria (CPNE) of a mixed duopoly with price competition where the public firm meets all the demand coming to it. If the private firm is free to supply less than demand, then the unique CPNE involves the competitive price. If however the private firm...

This paper examines public-private partnerships in micro-finance, whereby NGOs can help in channelizing credit to the poor, both in borrower selection, as well as in project implementation. We argue that a distortion may arise out of the fact that the private partner, i.e. the NGO, is a...

We develop a game-theoretic analysis of terrorism that examines the interaction between a terrorist organization and multiple target countries, and considers both pre-emption and deterrence as counter-terrorist policies. The damage from terror includes not only the material cost of fatality,...

We relate the pricing policy of the firms to their size, where firm size is interpreted as the size of the clientele served by the concerned firm. We argue that a firm with a large clientele faces a more severe reputational backlash if it reneges. This allows the firm to effectively commit to...

We consider a mixed oligopoly with a public firm that maximizes the sum of its own profits and consumers' surplus. We characterize the unique pure strategy equilibrium and show that as long as the cost function is not ``too concave'', privatization reduces welfare. We find that while the first...

We examine alliances between asymmetric countries. We find that the results depend on the nature of the equilibrium. If the equilibrium is an interior one then, with an increase in asymmetry, the level of the alliance-wide defense good decreases and the divergence between the first best and the...

We examine, in the context of less developed countries, the R&D behaviour of igopolistic firms who compete over R&D, as well as output levels. We also assume that the firms can sell in either of the two markets - the domestic, or the foreign. We show that entry liberalization, despite increasing...

We examine a simple model of collusion under a single-object second-price auction. Under the appropriate parameter conditions, in particular as long as collusion is neither too easy, nor too difficult, we find that the optimal policy involves both an effective ceiling, as well as a reserve price.

We consider group-lending with joint liability where the provision of loans is conditional on prior savings. In a dynamic model with moral hazard and endogenous group-formation, we examine the effect of such schemes on the allocation of loans between strongly and weakly empowered borrowers. We...