In this paper, we construct an interregional trade model that has en- dogenous fertility rates in the manner of Helpman and Krugman (1985). The presented model shows that fertility rates in a large region become lower than those in a small region because of the agglomeration of man- ufacturing...

This paper analyzes market diffusion in the presence of oligopolistic interaction among firms. Market demand is positively related to past market size because of consumer learning, networks, and bandwagon effects. Firms enter the market freely in each period with fixed costs and compete in...

This paper analyzes the market diffusion of a new product whose quality is uncertain. Consumers learn the product quality by observing the history of market outcomes. Firms cannot observe how consumers evaluate the product quality; instead, they learn by observing consumer behavior. New entry...

This paper analyzes market diffusion in the presence of oligopolistic interaction among firms. Market demand is positively related to past market size because of consumer learning, networks, and bandwagon effects. Firms enter the market freely in each period with fixed costs and compete in...

This study constructs a model of a relationship-specific investment in a dynamic framework. Although such investment decreases operating costs and increases the current joint profits of firms in vertical relationships, its specificity reduces the ex-post flexibility to change a trading partner...

This study considers a Cournot duopoly market in which a clean firm can transfer its less polluting technology to a dirty firm through a fixed-fee licensing contract. We analyze the impacts of emissions taxes on the incentives of firms to transfer technology as well as on the total pollution...

This paper analyzes market capacity expansion in the presence of intertemporal consumption externalities such as consumer learning, networks, or bandwagon effects. The externality leads to an endogenous shift of market demand that responds to past market capacity. Whereas market capacity grows...

This paper constructs a model of anticompetitive exclusive dealing in the presence of multiple entrants. Unlike a single-entrant model in the extant literature, an entrant competes not only with the incumbent to deal with buyers but also with other entrants. The competition among entrants then...

We investigate the effect of banning resale-below-cost offers. There are two retailers with heterogeneous bargaining positions in relation to a monopolistic manufacturer. Each retailer sells two goods: one procured from the monopolistic manufacturer and the other, from a competitive fringe. In...

This study considers a Cournot duopoly market in which a clean firm can transfer its less polluting technology to a dirty firm through a fixed-fee licensing contract. We analyze the impacts of emissions tax on the incentives of firms to transfer technology and the firms' total pollution level,...