This paper studies regulatory policy interventions aimed at protecting sticky consumers who are exposed to exploitation. We model heterogeneous consumer switching costs alongside asymmetric market shares. This setting encompasses many markets in which established firms are challenged by new...

This study assesses the empirical relevance of the Harris-Todaro model at high levels of urbanization a feature that characterizes an increasing number of developing countries, which were largely rural when the model was created 50 years ago. Using data from Brazil, the paper compares observed...

The search for economically efficient policy instruments designed to promote the diffusion of renewable energy technologies in liberalized markets has led to the introduction of quota-based tradable 'green' certificate (TGC) schemes for renewable electricity. However, there is a debate about the...