Abstract
Most techniques sociologists use to analyze empirical phenomena make the single equilibrium assumption that a given configuration of independent variables will produce a single outcome. The author uses two simple models to show that when the assumption does not hold, such techniques may be inadequate. The assumption, moreover, may not be valid for many social phenomena. To show this, the author takes two recent published examples of work that assumes a single equilibrium and presents models of the phenomena that suggest that assumption may not hold. The consequence of analysis that erroneously assumes a single equilibrium may be a fundamental misunderstanding of the phenomenon in question and faulty policy conclusions.
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