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“Write your model almost as you would on paper and Michel will take care of the rest!” Michel Juillard’s contribution to macroeconomics in historical perspective

Author

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  • Cherrier, Beatrice
  • Saïdi, Aurélien
  • Sergi, Francesco

Abstract

In this article, we document Michel Juillard’s contribution to macroeconomics. Best known as the creator of the computer package Dynare, Juillard’s impact extends far beyond software development. We trace his training and career from his first encounter with computers in high school through his ongoing work on Dynare. His contribution to macroeconomics, we argue, is threefold: intellectual (devising algorithms and addressing specific computational problems for a class of models), technical (writing code and developing a computer package), and institutional (establishing and maintaining the governance structures that ensure Dynare’s sustainability as a digital commons). Juillard’s career highlights broader questions about adapting Ostrom’s framework to digital commons development, the principles that govern software development, and the place computational economics should occupy in the history of macroeconomics.

Suggested Citation

  • Cherrier, Beatrice & Saïdi, Aurélien & Sergi, Francesco, 2026. "“Write your model almost as you would on paper and Michel will take care of the rest!” Michel Juillard’s contribution to macroeconomics in historical perspective," Journal of Economic Dynamics and Control, Elsevier, vol. 182(C).
    • Handle: RePEc:eee:dyncon:v:182:y:2026:i:c:s0165188925001903
    DOI: 10.1016/j.jedc.2025.105224
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    References listed on IDEAS

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    1. Béatrice Cherrier & Aurélien Saïdi, 2021. "Back to Front: The Role of Seminars, Conferences and Workshops in the History of Economics," Revue d'économie politique, Dalloz, vol. 131(4), pages 609-635.
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    4. Lars Peter Hansen & James J. Heckman, 1996. "The Empirical Foundations of Calibration," Journal of Economic Perspectives, American Economic Association, vol. 10(1), pages 87-104, Winter.
    5. Juillard, Michel, 1996. "Dynare : a program for the resolution and simulation of dynamic models with forward variables through the use of a relaxation algorithm," CEPREMAP Working Papers (Couverture Orange) 9602, CEPREMAP.
    6. Thomas Angeletti, 2021. "How economics frames political debates: Macroeconomic forecasting in the French planning commissions," Post-Print halshs-02479954, HAL.
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    10. Michel Juillard & Mr. Douglas Laxton, 1996. "A Robust and Efficient Method for Solving Nonlinear Rational Expectations Models," IMF Working Papers 1996/106, International Monetary Fund.
    11. Francesco Sergi & Pedro Garcia Duarte, 2023. "Computer Operators and Software Engineers at Data Resources Inc," Post-Print hal-04319028, HAL.
    12. Fair, Ray C & Taylor, John B, 1983. "Solution and Maximum Likelihood Estimation of Dynamic Nonlinear Rational Expectations Models," Econometrica, Econometric Society, vol. 51(4), pages 1169-1185, July.
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    16. Juillard, Michel & Laxton, Douglas & McAdam, Peter & Pioro, Hope, 1998. "An algorithm competition: First-order iterations versus Newton-based techniques," Journal of Economic Dynamics and Control, Elsevier, vol. 22(8-9), pages 1291-1318, August.
    17. Laxton, Douglas & Pesenti, Paolo & Juillard, Michel & Karam, Philippe, 2006. "Welfare-based monetary policy rules in an estimated DSGE model of the US economy," Working Paper Series 613, European Central Bank.
    18. Beatrice Cherrier & Aurélien Saïdi, 2021. "Back to Front: The Role of Seminars, Conferences and Workshops in the History of Economics (Volume 1)," Post-Print hal-04799482, HAL.
    19. Boyer, Robert & Juillard, Michel, 1998. "The contemporary Japanese crisis and the transformations of the wage labor nexus," CEPREMAP Working Papers (Couverture Orange) 9822, CEPREMAP.
    20. Roger E. Backhouse & Béatrice Cherrier, 2017. "“It’s Computers, Stupid!†The Spread of Computers and the Changing Roles of Theoretical and Applied Economics," History of Political Economy, Duke University Press, vol. 49(5), pages 103-126, Supplemen.
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    JEL classification:

    • B22 - Schools of Economic Thought and Methodology - - History of Economic Thought since 1925 - - - Macroeconomics
    • B31 - Schools of Economic Thought and Methodology - - History of Economic Thought: Individuals - - - Individuals

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