A Guestbook for G&L Monetary Economics models website
January 31, 2007 at 12.09 am
· Filed under Research
The web site for the Eviews versions of all models in Wynne Godley and Marc Lavoie Monetary Economics: An Integrated Approach to Credit, Money, Income, Production and Wealth is now complete, at the address http://gennaro.zezza.it/software/eviews/gl2006.php
If you use the address given in the footnote on page 19 in the book (www.gennaro.zezza.it/software/models) you get to the right place anyway.
If you find the website usefule, please leave a comment to this post, which is intended as a guestbook! If you want to comment on individual models, please use the Comments button provided on the web site.
If my spam killer stops your message from being published, I will recover it! first or later.
morganusvitus said,
2007-04-04 @ 1.06 pm
The site looks great ! Thanks for all your help ( past, present and future !)
Alex Izurieta said,
2007-04-19 @ 11.25 am
Gennaro,
many thanks for such a fine piece of work. I thought I was going to need material for two chapters but then… your site is so appealing and well presented that I found myself walking through from page to page (and now I am late for work!
)
I have been little by little advancing through the pages of Wynne and Marc’s book and… well there are pathbreaking insights there. I wish in some years it becomes the ‘compulsory’ textbook in all schools around the globe!
I am now considering using chapters 9 and 10 to spread out an alternative framework to ‘inflation targetting’. Hopefully Central Bankers in the developing world at least will be more sensible and open, after all that these countries have passed through by emulating abstract models which do not, and will never do, represent the economic realities of this world.
Will keep you posted.
Keep up the good work!
Alex
imam asngari said,
2007-05-31 @ 5.15 am
Iwish in some years it becomes the ‘compulsory’ textbook in all schools around the globe!
I am now considering using chapters 9 and 10 to spread out an alternative framework to ‘inflation targetting’. Hopefully Central Bankers in the developing Countries at least will be more sensible and open, after all that these countries have passed through by emulating abstract models which do not, and will never do, represent the economic realities of this world.
Will keep you posted.
Keep up the good work!
Imam Asngari
Mamede said,
2008-04-22 @ 12.40 pm
Thanks for the good work!
The website is very organized and macros fully documented.
I would suggest you use a counter for the downloads.
Not many people leave notes, but I believe that you have a lot of downloads.
Thanks again.
Mamede
Grad Student at American University
Red75 said,
2009-10-22 @ 3.28 pm
Rig some strobes in the structure, bouced up, and maybe even add extra diffusion at the accordion level. ,
Alexandre Sarquis said,
2009-11-09 @ 12.54 am
Prof. Zezza:
Thanks for the fine, fine work with eviews models for Godley/Lavoie. They ve really inspired me to seek deeper understanding on the subject. As I am a Scientific Computing minor i tried to replicate the results on Matlab, and came up with an extensible framework that you might think interesting. I’ve used FSOLVE. I thought maybe we could cook somethink up like a pack of routines for finite differences – SFC models – like a Dynare for keynesian people.
If you have someone who “talks” matlab (maybe yourself) i would gladly exchange some code and scientific papers (thoroughly commented in english).
Anyways best regards from the other side of the world!
gennaro said,
2009-11-10 @ 10.06 pm
Alexandre, if you want to share the Matlab codes I will be happy to publish them on my website.
Keep me informed!
Don Snyder said,
2010-01-04 @ 10.04 pm
Gennaro,
I would like to add my voice to the other contributors to this forum in expressing my appreciation to you for coding the Godley-Lavoie models to run on EVIEWS. Your efforts constitute a public good of considerable value to those of us who are trying to teach ourselves the SFC methodology.
In case you might not be aware of it, Kevin Capehart has translated your version of model one, SIM, into Mathematica code:
http://demonstrations.wolfram.com/TheParadoxOfThriftInASimpleStockFlowConsistentModel/
Since Mathematica is a more powerful programming language then EVIEWS, this conversion suggests some interesting possibilities: in particular, the use of sliders to visually observe the effect of parameter changes on simulated output values.
Has anybody else besides Alexandre either produced or encountered other versions of the Godley-Lavoie models, written for package is other than EVIEWS?
Don Snyder
gennaro said,
2010-01-05 @ 4.01 pm
Wynne Godley used to code in Modler, so all models are available in that language. However, Eviews code reaches a wider audience, so Marc and Wynne opted for this software to publish their models.
I am still searching for an open source alternative to Eviews for model solutions – and a web interface to let people solve models online – but my search has had no success so far.
erik bell said,
2010-05-14 @ 8.10 pm
My condolences to Godley’s family, friends, and colleagues. He will be missed.
I am trying to work my way through Godley and Lavoie using Scientific Workplace that uses MuPad (basically Maple is the engine under the hood). I’m glad I found this site and hopefully it will enable me to put together a full simulation in SWP that I will be glad to share with anybody, time permits.
I consider myself fortunate to have heard and meet Godley on several occasions.
gennaro said,
2010-05-15 @ 8.29 am
Thank you Eric. We will miss Wynne and his insights.
Frank Iannarilli said,
2010-08-20 @ 9.16 pm
From my brief review of EViews (just website, not actually using the software), it seems that the open-source R framework would be most similar:
http://www.r-project.org/
Don Snyder, I also would be interested in Mathematica implementations (and might offer to help…)
gennaro said,
2010-08-31 @ 8.02 am
As far as I know, R does not have a routine for solving models, as in Eviews. I have no doubts somebody will develop it sooner or later…
Erik Bell said,
2010-09-08 @ 9.47 pm
I successfully built Chapter 4′s Portfolio Choice model in SimuLink running on MatLab — I did Chapter 3′s SIM models in Scientific Workplace but I was not satisfied with the point by point estimation that went into making the graphs so I switched to SimuLink in MatLab as I don’t have a copy of EViews on my current machine. For those of you not familiar with SimuLink which runs on both MatLab and Maple, it is a mostly engineering software that allows one to setup schematics and then run simulations — I went this route because there was more examples of economic models using SimuLink than I found for S-Plus/R. If anybody wants a copy of my SimuLink file, I’ld be more than glad to pass it on.
I am a big fan of S-Plus/R and as I set out to go through the Godley-Lavoie models my preference for wanting to use S-Plus/R was immediately halted as there was no examples of code of how to run a numeric simulation of a system of linear equations. Having setup some of the models in Scientific Workplace which operates algebraically that is count equations and count variables and solve each variable point by point for each year, and having completed a model in SimuLink, I can envision how to setup the procedure (when I say procedure I mean self contained process that at the end spits-out whatever results you want) using a for loop would not need to rely any routine to solve the system of equations.
I did come across someone’s statement where they had said S-Plus/R is better for statistical simulation and MatLab is better for numeric simulations. I full heartedly agree with this statement but as I think about it and how compactly and beautifully crafted the Godley-Lavoie’s models are made, I’m almost tempted to try to construct them in S-Plus/R if I weren’t looking for work. If somebody wanted to work on this together, I’ld be glad to lend a helping hand.