While ARCH/GARCH equations have been widely used to model financial market data, formal explanations for the sources of conditional volatility are scarce. This paper presents a model with the property that standard econometric tests detect ARCH/GARCH effects similar to those found in asset...

Evolutionary game theory provides a fresh perspective on the prospects that agents with heterogeneous expectations might eventually come to agree on a single expectation corresponding to the efficient markets hypothesis. We establish conditions where agreement on a unique forecast is stable, but...

Frontmatter -- Contents -- Tables -- Figures -- Preface -- Abbreviations -- 1 Introduction -- 2 The MC Model -- 3 Interest Rate Effects -- 4 Testing the NAIRU Model -- 5 U.S. Wealth Effects -- 6 Testing for a New Economy in the 1990s -- 7 A "Modern" View of Macroeconomics -- 8 Estimated European...

A computationally feasible method for the full information maximum likelihood estimation of models with rational expectations is described in this paper. The stochastic simulation of such models is also described. The methods discussed in this paper should open the way for many more tests of the...