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Heterodox Shocks

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  • Greg Hannsgen

Abstract

Should shocks be part of our macro-modeling tool kit—for example, as a way of modeling discontinuities in fiscal policy or big moves in the financial markets? What are shocks, and how can we best put them to use? In heterodox macroeconomics, shocks tend to come in two broad types, with some exceptions for hybrid cases. What I call Type 1 shocks are one-time exogenous changes in parameters or variables. They are used, for example, to set computer simulations in motion or to pose an analytical question about dynamic behavior outside of equilibrium. On the other hand, Type 2 shocks, by construction, occur at regular time intervals, and are usually drawn at random from a probability distribution of some kind. This paper is an appreciation and a survey of shocks and their admittedly scattered uses in the heterodox macro literature, along with some proposals and thoughts about using shocks to improve models. Since shocks of both types might appear at times to be ad hoc when used in macro models, this paper examines possible justifications for using them.

Suggested Citation

  • Greg Hannsgen, 2013. "Heterodox Shocks," Economics Working Paper Archive wp_766, Levy Economics Institute.
    • Handle: RePEc:lev:wrkpap:wp_766
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    References listed on IDEAS

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    Cited by:

    1. Sergio Parrinello, 2014. "A search for distinctive features of demand-led growth models," PSL Quarterly Review, Economia civile, vol. 67(270), pages 309-342.

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    More about this item

    Keywords

    Shocks; Discontinuity; Dynamic Macro Models; Heterodox Macroeconomics; Growth and Fluctuations; Simulation Methodology;
    All these keywords.

    JEL classification:

    • B40 - Schools of Economic Thought and Methodology - - Economic Methodology - - - General
    • E12 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Keynes; Keynesian; Post-Keynesian; Modern Monetary Theory
    • E17 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Forecasting and Simulation: Models and Applications
    • E30 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - General (includes Measurement and Data)
    • E60 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - General

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