Risultati della ricerca
Creator: Levine, David K. Series: Working paper (Federal Reserve Bank of Minneapolis. Research Dept.) Number: 386 Abstract:
In a monetary model, it is shown that if there is a unique Pareto inefficient barter equilibrium, then a monetary equilibrium exists when traders are sufficiently patient.
Parola chiave: Barter equilibria, Consumers, Monetary equilbria, Money, and Inflation Soggetto: E42 - Money and interest rates - Monetary systems ; Standards ; Regimes ; Government and the monetary system ; Payment systems and D51 - General equilibrium and disequilibrium - Exchange and production economies
Creator: Ligon, Ethan., Thomas, Jonathan P., and Worrall, Tim. Series: Endogenous incompleteness Abstract:
This paper studies efficient insurance arrangements in village economies when there is complete information but limited commitment. Commitment is limited because only limited penalties can be imposed on households which renege on their promises. Any efficient insurance arrangement must therefore take into account the fact that households will renege if the benefits from doing so outweigh the costs. We study a general model which admits aggregate and idiosyncratic risk as well as serial correlation of incomes. It is shown that in the case of two households and no storage the efficient insurance arrangement is characterized by a simple updating rule. An example illustrates the similarity of the efficient arrangement to a simple debt contract with occasional debt forgiveness. The model is then extended to multiple households and a simple storage technology. We use data from the ICRISAT survey of three villages in southern India to test the theory against three alternative models: autarky, full insurance, and a static model of limited commitment due to Coate and Ravallion (1993). Overall, the model we develop does a significantly better job of explaining the data than does any of these alternatives.
Parola chiave: Village economies, Insurance arrangements, Limited commitment, Risk, India, and Agrarian economies Soggetto: O15 - Economic development - Human resources ; Human development ; Income distribution ; Migration, O12 - Economic development - Microeconomic analyses of economic development, and D81 - Information, knowledge, and uncertainty - Criteria for decision-making under risk and uncertainty
Creator: Gintis, Herbert. Series: Monetary theory and financial intermediation Abstract:
This paper develops the Kiyotaki-Wright model of monetary general equilibrium in which trade is bilateral and enforced by requiring that transactions be quid pro quo, and studies which goods are chosen, and under what conditions, as media of exchange. We prove the existence of a rational expectations equilibrium in which agents' expectations concerning trading opportunities are realized in the present and all future periods. We also show that, exceptional cases aside, no rational expectations barter equilibrium exists; that an equilibrium generally supports multiple money goods; and that a fiat money (i.e., a good that is produced, has minimum storage costs, but is not consumed) cannot be traded in rational expectations equilibrium.
Soggetto: C62 - Mathematical methods and programming - Existence and stability conditions of equilibrium and D51 - General equilibrium and disequilibrium - Exchange and production economies
Creator: Kehoe, Timothy Jerome, 1953-, Kiyotaki, Nobuhiro., and Wright, Randall. Series: Monetary theory and financial intermediation Abstract:
We extend the analysis of Kiyotaki and Wright, who study an economy in which the different commodities that serve as media of exchange are determined endogenously. Kiyotaki and Wright consider only symmetric, steady-state, pure-strategy equilibria, and find that for some parameter values no such equilibria exist. We consider mixed-strategy equilibria and dynamic equilibria. We prove that a steady-state equilibrium exists for all parameter values and that the number of steady-state equilibria is generically finite. We also show, however, that there may be a continuum of dynamic equilibria. Further, some dynamic equilibria display cycles.
Soggetto: D51 - General equilibrium and disequilibrium - Exchange and production economies and E40 - Money and interest rates - General
Creator: Baxter, Marianne, 1956- Series: Nonlinear rational expectations modeling group Abstract:
This paper develops a new method for approximating dynamic competitive equilibria in economies in which competitive equilibrium is not necessarily Pareto optimal. The method involves finding approximate equilibrium policy functions by iterating on the stochastic Euler equations which characterize the economy's equilibrium. Two applications are presented: the stochastic growth model of Brock and Mirman (1971) modified to allow distortionary taxation, and a model of inflation and capital accumulation based on Stockman (1981). The computational speed and accuracy of this approach suggests that it may be a feasible method for studying suboptimal economies with large state spaces.
Soggetto: C61 - Mathematical methods and programming - Optimization techniques ; Programming models ; Dynamic analysis, E51 - Monetary policy, central banking, and the supply of money and credit - Money supply ; Credit ; Money multipliers, and C63 - Mathematical methods and programming - Computational techniques ; Simulation modeling
Creator: Kiyotaki, Nobuhiro., Matsui, Akihiko., and Matsuyama, Kiminori. Series: Monetary theory and financial intermediation Abstract:
Our goal is to provide a theoretical framework in which both positive and normative aspects of international currency can be addressed in a systematic way. To this end, we use the framework of random matching games and develop a two country model of the world economy, in which two national fiat currencies compete and may be circulated as media of exchange. There are multiple equilibria, which differ in the areas of circulation of the two currencies. In one equilibrium, the two national currencies are circulated only locally. In another, one of the national currencies is circulated as an international currency. There is also an equilibrium in which both currencies are accepted internationally. We also find an equilibrium in which the two currencies are directly exchanged. The existence conditions of these equilibria are characterized, using the relative country size and the degree of economic integration as the key parameters. In order to generate sharper predictions in the presence of multiple equilibria, we discuss an evolutionary approach to equilibrium selection, which is used to explain the evolution of the international currency as the two economies become more integrated. Some welfare implications are also discussed. For example, a country can improve its national welfare by letting its own currency circulated internationally, provided the domestic circulation is controlled for. When the total supply is fixed, however, a resulting currency shortage may reduce the national welfare.
Parola chiave: Best response dynamics, Random matching games, Money as a medium of exchange, Evolution of international currency, and Multiple currencies Soggetto: F31 - International finance - Foreign exchange, C78 - Bargaining Theory; Matching Theory, E42 - Money and interest rates - Monetary systems ; Standards ; Regimes ; Government and the monetary system ; Payment systems, and D51 - General equilibrium and disequilibrium - Exchange and production economies
Creator: Lacker, Jeffrey Malcolm. and Schreft, Stacey Lee Series: Monetary theory and financial intermediation Abstract:
We describe a stochastic economic environment in which the mix of money and trade credit used as means of payment is endogenous. The economy has an infinite horizon, spatial separation and a credit-related transaction cost, but no capital. We find that the equilibrium prices of arbitrary contingent claims to future currency differ from those from one-good cash-in-advance models. This anomaly is directly related to the endogeneity of the mix of media of exchange used. In particular, nominal interest rates affect the risk-free real rate of return. The model also has implications for some long-standing issues in monetary policy and for time series analysis using money and trade credit.
Soggetto: G12 - General financial markets - Asset pricing ; Trading volume ; Bond interest rates and E42 - Money and interest rates - Monetary systems ; Standards ; Regimes ; Government and the monetary system ; Payment systems