shap@eros.cis.upenn.edu writes:
 > In message <19980815012650.21335.qmail@desk.crynwr.com>, Russell Nelson writes:
 > > shap@eros.cis.upenn.edu writes:
 > > I'm not sure I believe this theory.  There are far too many examples
 > > of binary choices.  Or, if you're a fan of the Highlander movies,
 > > "There Can Be Only Two."
 > 
 > There are many markets in which there is a single dominant provider
 > and a secondary provider.  Generally the secondary provider has less
 > than half the market share of the primary.
 > 
 > Do any markets occur to you in which two major providers remain at
 > parity for any length of time?

Republican / Democrat.  Coke / Pepsi.  Ford / Chevy pickups.  I'm sure 
there are more, but my brain is fading.

-- 
-russ nelson <rn-sig@crynwr.com>  http://crynwr.com/~nelson
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