The model of competition for investment assumes that regions use individualized tax relief for different projects and produce public goods. The capital market allocates investments among regions, and the labor market adjusts wages and employment. Simulations with the model under different...

We study endogenous productivity in monopolistic competition with general (unspecified) utility/investment functions; a bigger investment yields smaller marginal cost. Then the equilibrium investments increase with the market size if and only if the utility (realistically) generates increasing...

We study the screening or nonlinear pricing for discrete consumer types when the single-crossing condition need not hold. A method is developed to reveal social eff±ciency or distortion of equilibria from market observations. The two known indicators of effciency, namely absence of almost-envy...

We study discrete-type screening without Spence-Mirrlees condition. Under non-separable and non-concave cost, all packages can be distorted in equilibrium, even when only the participation constraints are active. This and other paradoxical effects, shown by examples, are caused by some kind of...

Several common wisdoms of economic geography and trade theories rely on specific technical assumptions, notably, CES utilities. Krugman’s (1979) general approach to monopolistic competition avoid this limitation, but has too narrow use. We expand it now to a family of multisector models and to...

It is shown that supplementing any usage-based pricing with a flatt-fee scheme is profit improving when the savings from transactions costs and from deadweight loss by using flat fee exceed the additional production costs. We use a most general model, without many traditionally used assumptions...

In this normative study of fiscal competition mechanism, we allow for various schemes of taxation, various mobility of tax-base, non-identical regions, and nonbenevolent governments. We examine the fundamental trade-o® between “negative externalities” of the competition and benefits from...