This paper develops a model of market-opening pressure
and response based on the positive theory of political economy
and applies it to the case of Korea and the U.S. The model
formulates a demand function for market-opening based on
foreign pressures for the opening and a supply function based in
the interaction of domestic forces for and against the opening.
An empirical analysis is performed by estimating logit functions
separately for demand, supply and reduced form equations. The
behavioral patterns of Korea's supply of as well as U.S. demand
for market-opening turn out to be broadly consistent with the
theory of common interest groups. It is also found that both
patterns exhibit an aspect of an enlightened government to some
extent, Finally, it is shown that supplier tends to respond to
opening pressures in a negative manner, deviating from the
independent enlightened supply behavior.