Key research themes
1. How does firm-level product variety and switching behavior shape industry concentration dynamics?
This research theme investigates the role of multiple-product firms and their endogenous product switching decisions in influencing the structure and concentration of industries. By considering firms that add, drop, or switch products dynamically, it explores how internal firm strategies affect market scope, resource allocation, and ultimately concentration measures over time. Understanding this micro-level product portfolio management provides a richer explanation for industry concentration than traditional single-product firm models.
2. What is the relationship between industry concentration levels and firms’ innovation and risk-taking behavior?
This theme explores how varying degrees of market concentration impact firms' strategic decisions to innovate and to undertake risk, affecting industry structure and dynamics. It delves into the competing theoretical perspectives from Schumpeterian and Arrowian views regarding whether concentration fosters or impedes innovation, examines empirical patterns from emerging economies, and investigates how high concentration environments modulate risk-taking, especially in financial sectors.
3. How do industry concentration metrics and firm organization relate to market dynamics and asset pricing?
This theme synthesizes empirical and theoretical work on measurement techniques for industry concentration, the impact of concentration on market performance, and the role of firm heterogeneity and organizational structure. It further investigates how these factors influence asset pricing and firm dynamics in competitive markets, considering both static concentration indices and dynamic models accounting for mergers, entry, and firm heterogeneity.