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TheRBCvoteIn1983,LongandPlosserintroducedtheterm"realbusinesscycles"(RBC)justafterKydlandandPrescottpublishedtheirtime-to-buildpaper.RBCstuckandhasbecometheacronymforamethodologythatisnowappliedto ...
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In the first issue of the EconomicDynamics Newsletter, David Backus suggested that a vote should be taken to decide on a new and more appropriate acronym. Well, time has come to do exactly that. I have gathered some suggestions from prominent users of this theory and people that have helped shape it. Here they are, with some arguments to help you make a choice.
The object of the voteThe acronym should represent the methodology whereby economic issues are addressed with dynamic general equilibrium models that are calibrated (or sometimes estimated) in order to obtain quantitative results and/or compute welfare measures. Feel free to differ on this definition.The choices- Applied Equilibrium Dynamics - AED
- Dynamic General Equilibrium Model - DGE
- Kydland Prescott Model - KPM
- Quantitative Equilibrium Dynamics - QED
- Real Business Cycle Theory - RBC
- Stochastic CAlibrated Dynamic General Equilibrium - SCADGE
- Serious Equilibrium Models - SE
Edward Prescott, University of Minnesota
Long and Plosser introduced the term real business cycles to distinguish cycles induced by real factors from cycles induced by nominal factors and by financial crises. This I think is good language for this distinction. The term real business cycles has come to have a much broader meaning and I agree with David Backus that a an acronym is needed for the development you describe in your email. The key concepts are quantitative or applied, dynamic, and general equilibrium. This suggests Quantitative Equilibrium Dynamics (QED) or Applied Economic Dynamics (AED).
Julio Rotemberg, Harvard UniversitySCADGE (pronounced as a one syllable word) stands for Stochastic CAlibrated Dynamic General Equilibrium and these are, to me, the key five words that describe these models. There are many varieties of dynamic general equilibrium models out there (including growth models, of course) and it seems important to distinguish these from the others. Calibration is not the only distinguishing feature, however, as this is done also in the fairly vast literature that calls itslef CGE (or Computational General Equilibrium). What separates this from that is the explicit analysis of second moments, and that is why I put in the S.
Randall Wright, University of PennsylvaniaI sort of like "the DGE model". Although "the Kydland-Prescott Model" (KPM) is even better -- it's accurate and fair.
David Backus, New York UniversityI agree with Randy: DGE.Timothy Kehoe, University of MinnesotaI vote for dynamic general equilibrium (although I like "applied").
Patrick Kehoe, Federal Reserve Bank of MinneapolisI like DGE but you have to admit that it sounds a little nerdy. If we could get away with it, I would prefer SE for Serious Equilibrium models, but it is not clear this this term will fly. The problem with AED or ADE is that it brings to mind the work on Applied General Equilibrium models by the old group at the World Bank that was not so good.
Michael Woodford, Princeton UniversityDGE models. QED is fine (even better than DGE models) as a way of referring to the literature as a whole. For example, there could be a web page for 'QED', a review article might discuss developments in 'QED', and so on. But it isn't a good term for an individual model: iit would be very awkward to write a paper that begins "I construct an open-economy QED model..." So instead one needs the term 'DGE model' to refer to an individual example. This makes it the better term.Vote results
| DGE | 75.9% |
| SCADGE | 9.3% |
| QED | 5.6% |
| RBC | 3.7% |
| KPM | 1.9% |
| SE | 1.9% |
| other | 1.9% |
- Rather Be Calibrating - RBC (Peter Summers)
- Intertemporal Stochastic Laboratory Models (Franck Portier)
這個(gè)是我在逛網(wǎng)站時(shí)看到的一些有趣的東西，和大家分享。具體內(nèi)容是許多著名學(xué)者對(duì)DGE 和CGE 還有RBC的一些看法和選擇，最后發(fā)現(xiàn)DGE wins
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