This article studies how product introduction decisions relate to profitability and uncertainty in the context of multi-product firms and product differentiation. These two features, common to many modern industries, have not received much attention in the literature as compared to the classical...

Consider a Bertrand model in which each firm may be inactive with a known probability, so the number of active firms is uncertain. This simple model has a mixed-strategy equilibrium in which industry profits are positive and decline with the number of firms, the same features which make the...

Firms producing differentiated products have high margins and therefore low risk. As a result firms invest more into developing differentiated products when they perceive risk is high. Higher risk also implies higher product skewness towards more differentiated products and therefore higher...

We develop a general equilibrium model in which heterogeneous entrepreneurs produce output in the presence of financing constraints. We model granular uncertainty as the shocks that affect the uncertainty in future idiosyncratic productivity without changing the cross-sectional dispersion of...

This paper studies how expected returns interact with product market competition. The model predicts that (i) competition erodes markups, such that firms are more exposed to systematic risk; (ii) the threat of entry by new firms lowers exposure to systematic risk of incumbents; and (iii) higher...

This paper characterizes how firms' strategic interaction in product markets affects the industry dynamics of investment and expected returns. In imperfectly competitive industries, a firm's exposure to systematic risk is jointly affected by its own investment strategy and the investment...

Building on dynamic collusion theories, we predict that firms with less concentrated upstream or downstream industries have lower systematic risk because their supply chain partners tend to compete more aggressively during recessions, absorbing more of the adverse effect of aggregate shocks....

We analyze the quantitative asset-pricing implications of peers' strategic rivalry by embedding oligopolistic competition within an endowment economy. Rivalry intensity increases endogenously as the discount rate rises or expected growth declines, because peers care less about future...

This is the supplemental material to the paper titled "The Oligopoly Lucas Tree: Consumption Risk and Industry-Level Risk Exposure." It includes additional empirical, theoretical, and quantitative results. It also includes illustration for the numerical algorithm for our model solution

In a game-theoretic model where agents compete for claims to a consumption stream, we characterize how creative destruction affects risk, wealth, and prices. Overinvestment not only imposes excessive disruption risk on existing assets and higher technological uncertainty, it also increases the...