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(Wp 2020-05) Change And Continuity In Economic Methodology And Philosophy Of Economics, John B. Davis

Economics Working Papers

This paper provides my reflections on the state of economic methodology and philosophy of economics as of the beginning of 2020 following the end a fifteen year co-editorship of the Journal of Economic Methodology with Wade Hands. It looks at how economic methodology and philosophy of economics, as a meta-field type of research, has changed since it emerged as a distinct subfield in economics in the 1980s. Using an evolution of technology analysis, it distinguishes two different possible scenarios for the field’s future according to environmental factors operating upon it and how specialization in research may affect both it and …

(Wp 2020-03) The Effect Of Central Bank Credibility On Forward Guidance In An Estimated New Keynesian Model, Stephen J. Cole, Enrique Martínez-García

Economics Working Papers

This paper examines the effectiveness of forward guidance in an estimated New Keynesian model with imperfect central bank credibility. We estimate credibility for the U.S. Federal Reserve with Bayesian methods exploiting survey data on interest rate expectations from the Survey of Professional Forecasters (SPF). The results provide important takeaways: (1) The estimate of Federal Reserve credibility in terms of for- ward guidance announcements is relatively high, which indicates a degree of forward guidance effectiveness, but still one that is below the fully credible case. Hence, anticipation effects are attenuated and, accordingly, output and inflation do not respond as favorably to …

(Wp 2020-04) Heterogeneity In Individual Expectations, Sentiment, And Constant-Gain Learning, Stephen J. Cole, Fabio Milani

Economics Working Papers

The adaptive learning approach has been fruitfully employed to model the formation of aggregate expectations at the macroeconomic level, as an alternative to rational expectations. This paper uses adaptive learning to understand, instead, the formation of expectations at the micro-level, by focusing on individual expectations and, in particular, trying to account for their heterogeneity.

We exploit survey data on output and inflation expectations by individual professional forecasters. We link micro and macro by endowing forecasters with the same information set that they would have as economic agents in a benchmark New Keynesian model. Forecasters are, however, allowed to differ in …

(Wp 2020-02) Belief Reversals As Phase Transitions And Economic Fragility: A Complexity Theory Of Financial Cycles With Reflexive Agents, John B. Davis

Economics Working Papers

This paper aims to contribute to the analysis of expectations and belief reversals in an evolutionary and complexity economics framework. It formulates its analysis in terms of the concept of reflexivity, drawing on the ideas regarding reflexivity in financial markets of George Soros, and lays out a model of how a financial cycle expresses a systematic pattern of interacting feedback effects. The paper develops this analysis as a complex interaction between sets of heterogeneous expectations derived from the behavior of reflexive economic agents. Positive and negative feedback phases in a cycle are distinguished and associated with boom and bust stages …

(Wp 2020-01) The Sea Battle Tomorrow: The Identity Of Reflexive Economic Agents, John B. Davis

Economics Working Papers

This paper develops a conception of reflexive economic agents as an alternative to the standard utility conception, and explains individual identity in terms of how agents adjust to change in a self-organizing way, an idea developed from Herbert Simon. The paper distinguishes closed equilibrium and open process conceptions of the economy, and argues the former fails to explain time in a before-and-after sense in connection with Aristotle’s sea battle problem. A causal model is developed to represent the process conception, and a structure-agency understanding of the adjustment behavior of reflexive economic agents is illustrated using Merton’s self-fulfilling prophecy analysis. Simon’s …