The logistic regression models has been widely used in the social and natural sciences and results from studies using this model can have significant impact. Thus, confidence in the reliability of inferences drawn from these models is essential. The robustness of such inferences is dependent on...

This research examines market power using Lau’s Hessian Identity relationships based on the empirical properties of duality theory. We compare the performance of the proposed dual approach using Lau’s Hessian Identity relationships with the simple traditional dual approach.