Growth Diagnostics, GD, by Ricardo Hausmann, Dani Rodrik and Andrés Velasco, represents a useful and practical approach in order to identify the most binding constraints to explain low economic growth. According to the authors the full list of specific economic constraints is unknowable...

We provide a theoretical framework to discuss the relation between market size and vertical structure in the railway industry. The framework is based on a simple downstream monopoly model with two input suppliers, labor forces and the rail infrastructure firm. The operation of the downstream...