King, Gary2010-09-291989King, Gary. 1989. A seemingly unrelated Poisson regression model. Sociological Methods and Research 17(3): 235-255.0049-1241http://nrs.harvard.edu/urn-3:HUL.InstRepos:4454150This article introduces a new estimator for the analysis of two contemporaneously correlated endogenous event count variables. This seemingly unrelated Poisson regression model (SUPREME) estimator combines the efficiencies created by single equation Poisson regression model estimators and insights from "seemingly unrelated" linear regression models.en-USJournal Article2010-09-2910.1177/0049124189017003001