his book reviews recent progress in the theory of oligopoly and market leadership and provides new results on the theory of Stackelberg competition and Nash competition with strategic investment under endogenous entry. These theories are applied to models of competition in quantities, prices and...

One of the pioneering works on endogenous market structures, by Tandon (1984), has extended the standard Cournot model with linear demand to endogenous entry and sunk R&D costs to show that the endogenous number of firms is independent from the size of the market. I generalize the model in many...

We analyze the choice of incentive contracts by oligopolistic firms that compete on the product market. Managers have private information and in the first stage they exert cost reducing effort. In equilibrium the standard "no distortion at the top" property disappears and two way distortions are...

We develop a simple model of competition for the market that shows that, contrary to the Arrow view, endogenous entry threat in a market induces the average firm to invest less in R&D and the incumbent leader to invest more. We test these predictions with a Tobit model based on a unique dataset...

I analyze the Renaissance art market in Italy through a unique dataset on primary commissions between 1285 and 1550. Hedonic regressions on the real price of paintings allow me to advance evidence that the art market was to a large extent competitive, and that an important determinant of...