Robbie,

Thanks for the comments.  Yep, this is the sort of thing that had led to a
lot of automated trading in the markets.  Joking aside, this type of simple
portfolio optimization has actually been around for a long time.  Some would
argue the L_1 criterion used here is actually more robust to model
assumptions than usual Markowitz model.

Thanks for the edits.  I went back and cleaned up a lot of the presentation,
it was loaded with errors both small and large. Hopefully its in reasonably
good shape.  I also added some possible extensions if folks want to fiddle
around with this example.

Jeff

On Thu, Jul 8, 2010 at 7:09 PM, Robbie Morrison <[email protected]> wrote:

> Hello Jeff
>
> My first reaction: is this the kind of analysis that
> contributed to the financial crisis?
>
> Jokes aside, I read the text carefully and thought it
> very good.  I made some light edits which you can diff
> if you like.  I also added typical results.
>
> Overall, I think it is really good to have these kinds
> of annotated tutorial examples available on the web,
> particularly when they also cover a range of domains and
> modeling styles.
>
> best wishes, Robbie
>
> > ------------------------------------------------------------
> > To:          GLPK-HELP <[email protected]>
> > Subject:     [Help-glpk] Portfolio Optimization Example
> > From:        Jeffrey Kantor <[email protected]>
> > Date:        Thu, 8 Jul 2010 17:04:33 -0400
> > ------------------------------------------------------------
> >
> > For what it is worth, I put up a portfolio optimization
> > example on the wikibook page under GMPL examples. I'd
> > appreciate any thoughts or feedback on this.
> >
> > Jeff
> >
> > http://en.wikibooks.org/wiki/GLPK/Portfolio_Optimization
>
> ---
> Robbie Morrison
> PhD student -- policy-oriented energy system simulation
> Technical University of Berlin (TU-Berlin), Germany
> University email (redirected) : [email protected]
> Webmail (preferred)           : [email protected]
> [from Webmail client]
>
>
>
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