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A general and practical competitive market model for trading indivisible goods is introduced. There are a group of buyers and a group of sellers, and several indivisible goods. Each buyer is initially endowed with a sufficient amount of money and each seller is endowed with several units of each...
Persistent link: https://www.econbiz.de/10005762658
Attainment of rational expectations equilibria in asset markets calls for the price system to disseminate agents’ private information to others. Markets populated by human agents are known to be capable of converging to rational expectations equilibria. This paper reports comparable market...
Persistent link: https://www.econbiz.de/10011207378
Attainment of rational expectations equilibria in asset markets calls for the price system to disseminate traders’ private information to others. It is known that markets populated by asymmetrically-informed profit-motivated human traders can converge to rational expectations equilibria. This...
Persistent link: https://www.econbiz.de/10010578248
We show that in almost every economy with separable externalities, every competitive equilibrium can be Pareto improved by a package of anonymous commodity taxes that causes prices to adjust and markets to reclear at different levels of individual consumption. This constrained suboptimality of...
Persistent link: https://www.econbiz.de/10005593157
We show that in almost every economy with separable externalities, every competitive equilibrium can be Pareto improved by a package of anonymous commodity taxes that cause prices to adjust and markets to reclear at different levels of individual consumption. The argument can be extended to...
Persistent link: https://www.econbiz.de/10005593342
We use the theory of abstract convexity to study adverse-selection principal-agent problems and two-sided matching problems, departing from much of the literature by not requiring quasilinear utility. We formulate and characterize a basic underlying implementation duality. We show how this...
Persistent link: https://www.econbiz.de/10011201348
Competitive equilibrium allocations are indeterminate when the net trades in commodities are constrained, while the asset market is incomplete.
Persistent link: https://www.econbiz.de/10005463855
We build a one-period general equilibrium model with money. Equilibrium exists, and fiat money has positive value, as long as the ratio of outside money to inside money is less than the gains to trade available at autarky. We show that the nominal effects of government fiscal and monetary policy...
Persistent link: https://www.econbiz.de/10004990799
This paper explores the general equilibrium impact of social security portfolio diversification into private securities, either through the trust fund or via private accounts. The analysis depends critically on heterogeneity in saving, in production, in assets, and in taxes. Under fairly general...
Persistent link: https://www.econbiz.de/10005093924
We study Pareto improvements whose implementation requires knowledge of only market prices and traded quantities, not utility and demand functions. Quantity stabilization gives agents the right to repeat the net trades they previously conducted, but requires policymakers to have records of those...
Persistent link: https://www.econbiz.de/10005093933