IDEAS home Printed from https://ideas.repec.org/
MyIDEAS: Login to save this paper or follow this series

E Pluribus Unum: Macroeconomic Modelling for Multi-agent Economies

  • Assenza, T.

    ()

    (Universiteit van Amsterdam)

  • Delli Gatti, D.

    (Catholic University of Milan)

From the point of view of the average macroeconomist, agent based modelling has an obvious drawback: It makes impossible to think in aggregate terms. The modeller, in fact, can reconstruct aggregate variables only "from the bottom up" by summing the individual quantities. As a consequence the interpretation of the trasmission mechanism of shocks is somehow arbitrary. We propose a modelling strategy which reduces the dimensionality of an agent based framework by replacing the actual distributional features (in our model: the distribution of financial conditions) with the first and second moments of the distribution itself. The main message is that the difficulty of thinking in macroeconomic terms when dealing with multi-agent economies can be circumvented by means of an appropriate aggregation procedure which we label the Modified-Representative Agent such that the distribution of agents' characteristics can be approximated by (at least) the (first and second) moments of the distribution. The moments of the distribution play the role of macroeconomic variables. We put this strategy at work in a model of the financial accelerator in which firms' heterogeneous degree of financial robustness affect investment in a bankruptcy risk context (à la Greenwald-Stiglitz).

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

File URL: http://www1.fee.uva.nl/cendef/publications/papers/AD_5.pdf
Download Restriction: no

Paper provided by Universiteit van Amsterdam, Center for Nonlinear Dynamics in Economics and Finance in its series CeNDEF Working Papers with number 12-08.

as
in new window

Length:
Date of creation: 2012
Date of revision:
Handle: RePEc:ams:ndfwpp:12-08
Contact details of provider: Postal: Dept. of Economics and Econometrics, Universiteit van Amsterdam, Roetersstraat 11, NL - 1018 WB Amsterdam, The Netherlands
Phone: + 31 20 525 52 58
Fax: + 31 20 525 52 83
Web page: http://www.fee.uva.nl/cendef/
Email:


More information through EDIRC

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

as in new window
  1. Bernanke, Ben & Gertler, Mark, 1989. "Agency Costs, Net Worth, and Business Fluctuations," American Economic Review, American Economic Association, vol. 79(1), pages 14-31, March.
  2. Kiyotaki, Nobuhiro & Moore, John, 1997. "Credit Cycles," Journal of Political Economy, University of Chicago Press, vol. 105(2), pages 211-48, April.
  3. Bernanke, Ben & Gertler, Mark, 1990. "Financial Fragility and Economic Performance," The Quarterly Journal of Economics, MIT Press, vol. 105(1), pages 87-114, February.
  4. M. Gallegati & A. Palestrini & D. Gatti & E. Scalas, 2006. "Aggregation of Heterogeneous Interacting Agents: The Variant Representative Agent Framework," Journal of Economic Interaction and Coordination, Springer, vol. 1(1), pages 5-19, May.
  5. Cordoba, Juan & Ripoll, Marla, 2002. "Collateral Constraints in a Monetary Economy," Working Papers 2002-02, Rice University, Department of Economics.
  6. Per Krusell & Anthony A. Smith & Jr., 1998. "Income and Wealth Heterogeneity in the Macroeconomy," Journal of Political Economy, University of Chicago Press, vol. 106(5), pages 867-896, October.
  7. Ben Bernanke & Mark Gertler & Simon Gilchrist, 1998. "The Financial Accelerator in a Quantitative Business Cycle Framework," NBER Working Papers 6455, National Bureau of Economic Research, Inc.
  8. Mark L. Gertler & R. Glenn Hubbard, 1988. "Financial Factors in Business Fluctuations," NBER Working Papers 2758, National Bureau of Economic Research, Inc.
  9. Stephanie Schmitt-Grohe & Martin Uribe, 2002. "Solving Dynamic General Equilibrium Models Using a Second-Order Approximation to the Policy Function," NBER Technical Working Papers 0282, National Bureau of Economic Research, Inc.
  10. Greenwald, Bruce C & Stiglitz, Joseph E, 1993. "Financial Market Imperfections and Business Cycles," The Quarterly Journal of Economics, MIT Press, vol. 108(1), pages 77-114, February.
  11. Bruce C. Greenwald & Joseph E. Stiglitz & Andrew Weiss, 1984. "Informational Imperfections in the Capital Market and Macro-Economic Fluctuations," NBER Working Papers 1335, National Bureau of Economic Research, Inc.
  12. White, Michelle J, 1989. "The Corporate Bankruptcy Decision," Journal of Economic Perspectives, American Economic Association, vol. 3(2), pages 129-51, Spring.
  13. Stewart C. Myers & Nicholas S. Majluf, 1984. "Corporate Financing and Investment Decisions When Firms Have InformationThat Investors Do Not Have," NBER Working Papers 1396, National Bureau of Economic Research, Inc.
  14. Myers, Stewart C. & Majluf, Nicolás S., 1945-, 1984. "Corporate financing and investment decisions when firms have information that investors do not have," Working papers 1523-84., Massachusetts Institute of Technology (MIT), Sloan School of Management.
Full references (including those not matched with items on IDEAS)

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

When requesting a correction, please mention this item's handle: RePEc:ams:ndfwpp:12-08. See general information about how to correct material in RePEc.

For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Cees C.G. Diks)

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.

This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.