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A general method of solution for game theory and its relevance for economic theorizing
According to the folklore of economics, game theory has failed. This paper argues that that is an incorrect interpretation of the game theory literature. When faced with a well-posed problem, game theory provides a solution. When faced with an ill-posed problem, game theory fails to provide a solution. This is, indeed, the best one can hope for from a method of analysis! Further, some suggestions are made for facing game theory with well-posed economic problems.
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Shocks, learning, and persistence
A simple model of the process of learning in a diverse economy is presented. This model produces a stylized business cycle with shocks which precipitate the learning process. All agents have the same information, which implies that this business cycle cannot be reduced by improved information flow, counter to many models of output and employment fluctuation.
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A suggestion for further simplifying the theory of money
Our suggestion consists of three postulates: assets are valued only in terms of their payoffs, perfect foresight, and complete and costless markets under laissez-faire. Together these postulates imply that the crucial anomaly, rate-of-return dominance of ?money,? is to be explained by legal restrictions. ; Our defense of these postulates is two-fold. First we compare them with existing alternative theories. Second, we provide an illustrative model which : (a) is consistent with the postulates, (b) implies rate-of-return dominance under suitable legal restrictions, and (c) addresses monetary ...
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Demand management: an illustrative example
This paper presents a simple coherent general equilibrium example in which optimal provision of a public good implies counter-cyclical government expenditure.
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A price discrimination analysis of monetary policy
Monetary policy is analyzed within a model that ignores transaction costs and appeals solely to legal restrictions on private intermediation to explain the coexistence of currency and interest-bearing default-free bonds. The interaction between such legal restrictions and monetary policy is illustrated in versions of overlapping generations models that contain three assets: government-issued currency and bonds and real capital. It is shown that legal restrictions and the use of both currency and bonds permit the government to levy a discriminatory inflation tax and that such a tax may be ...
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Costly information and the stock market
In a simple, coherent, general equilibrium model it is demonstrated why stock market prices do not reflect costly but socially useless information.
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Bank collapse and depression
The recurrent banking panics of the 19th century and the Great Depression of the 1930s are widely viewed as failures of our economic system. A simple version of Samuelson?s overlapping generations model is used to generate such failures of Walrasian equilibrium. The spontaneous ?panics? generated involve a collapse of bank credit, causing in turn a drop in investment demand. The model suggests that both the recent technological advances in the intermediation industry and the current move towards deregulation of that industry are ominous developments.