Erdem, Tulin; Sun, Baohong - In: Journal of Business & Economic Statistics 19 (2001) 2, pp. 142-52
This article applies different approaches to distinguish state dependence from unobserved heterogeneity and serial correlation and, hence, test for state dependence in consumer brand choices. First, we apply a simple method proposed by Chamberlain, which involves lagged exogenous variables only....