----------------- HES POSTING ----------------- 
 
(Erratum!) 
 
I  wrote: 
 
>A. In just the same way, my failure 
>to be vaccinated makes it that much more likely that others catch a 
disease 
>from me. The government has an externality-based reason to subsidize 
>vaccination in the one case, and cowardice in the other. 
 
Whoops: for "cowardice" I meant to write "courage"--Sorry 
 
Kevin Quinn 
 
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