The paper considers a cost-reducing investment by the public sector. We compare the investment in the public monopoly to that in the mixed oligopoly. Without specifications of the demand and cost functions, we show that the investment in the public monopoly is higher thanthat in the mixed...

This note provides an axiomatic analysis of a social welfare ordering over infinite utility streams. We offer two characterizations of an infinite-horizon version of the Nash criterion.

We investigate the privatization policy of an industry where the production process generates emissions. We show that the high degree of negative externality leads to production substitution from the public firm to private firms. Moreover, we show that, if the degree of negative externality is...

The purpose of this paper is to examine the public sector's cost-reducing investment when there exists the effect of R&D spillover. We show that the investment in the mixed oligopoly is not higher than that in the public monopoly. When the cost-reducing effect of investment for each firm is the...

We investigate the privatization policy of an industry where the production process generates emissions. We show that the high degree of negative externality leads to production substitution from the public firm to private firms. Moreover, we show that, if the degree of negative externality is...

The purpose of this paper is to examine the public sector's cost-reducing investment when there exists the effect of R&D spillover. We show that the investment in the mixed oligopoly is not higher than that in the public monopoly. When the cost-reducing effect of investment for each firm is the...

The paper considers a cost-reducing investment by the public sector. We compare the investment in the public monopoly to that in the mixed oligopoly. Without specifications of the demand and cost functions, we show that the investment in the public monopoly is higher thanthat in the mixed...

I introduce uncertainty into the model of strategic cost-reducing R and D investments and reexamine welfare implications. I discuss two models. In one model an increase in expenditure decreases production costs when R\&D succeeds, and in the other model it increases probability of success. I...

We investigate the equilibrium location pattern and welfare implication in delivered pricing model (or spatial price discrimination model) with a linear city. First, we extend a delivered pricing duopoly with Bertrand competition of Hamilton et al. (1989) to an n-firm model and explicitly solve...

We apply a spatial model that includes both circular-city and linear-city models as special cases to the analysis of location-quantity model in mixed oligopoly. We find that the equilibrium pattern continuously moves from that of the circular-city to that of the linear-city and that the...