[OPE-L:7269] Re: Re: Re: Re: TSS

From: Rakesh Bhandari (rakeshb@stanford.edu)
Date: Tue May 28 2002 - 03:38:55 EDT

re: 7265

>You do realize that difference equations can't be used to model
>continuous change?  Differential equations are required for that job.
>This is not a trivial point.  Paul C has argued that TSS gets at least
>some of its particular results by slicing time into "periods" rather
>than attempting to model continuous change.

Yes, I have blundered:  it would seem that if there are many firms in 
a branch, say, in a one branch economy and they are all making 
techno-organizational improvements of one sort at one point or 
another, then change in the branch and economy as a whole would be 
continuous, and discretization (if that is the word) would 
misrepresent the process. Allin, am I following you?

  I had the impression from discussion on OPE-L that the debate was 
between simultaneous and difference equations. But it would be great 
if there were some OPE-L debate about why (and which) TSS results 
depend on the discretization implicit in the use of difference 

All the best, R

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