Hruschka, Harald - In: Journal of Business Economics 94 (2023) 4, pp. 639-657
A regressor is endogenous if it is correlated with the unobserved residual of a model. Ignoring endogeneity may lead to biased coefficients. We deal with the omitted variable bias that arises if firms set marketing variables considering factors (demand shocks) that researchers do not observe....
