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industries and (iv) marginally increases industry output concentration. Addressing the recent literature, we also control for …
Persistent link: https://www.econbiz.de/10014118647
This paper uses new data to reexamine trends in concentration in U.S. markets from 1994 to 2019. The paper's main … contribution is to construct concentration measures that reflect narrowly defined consumption-based product markets, as would be … higher than previous results. Also in contrast with the previous literature, we find that product market concentration has …
Persistent link: https://www.econbiz.de/10013349834
A rapidly growing literature has shown that market concentration among domestic firms has increased in the United … measures of concentration, once adjusted for sales by foreign exporters, actually stayed constant between 1992 and 2012. We … reconcile these findings by linking part of the increase in domestic concentration to import competition. Although concentration …
Persistent link: https://www.econbiz.de/10012520308
We use a dynamic oligopoly model of entry and exit to evaluate how entry regulations affect profitability and market structure in retail. The model incorporates demand and store-level heterogeneity. Based on unique data for all retail food stores in Sweden, we find that the average entry costs...
Persistent link: https://www.econbiz.de/10010206790
We use a dynamic oligopoly model of entry and exit with store-type differentiation to evaluate how entry regulations affect profitability, market structure and welfare. Based on unique data for all retail food stores in Sweden, we estimate demand, recover variable profits, and estimate entry...
Persistent link: https://www.econbiz.de/10011412927
R&D intensity industries have a lower bound for concentration, which is higher than that for low sunk cost intensity …
Persistent link: https://www.econbiz.de/10014055297
This paper shows that the R&D intensity of an industry plays an important role in determining international trade patterns via its effect on scale economies. I first develop a model of trade with heterogeneous firms where firms compete with each other by spending on fixed product development...
Persistent link: https://www.econbiz.de/10009632205
The degree of endemic volatility in the number of firms and establishments varies considerably across industries. Examining the within-industry range of variation (max.-min.) of the number of firms over our sample period, the low and high values across U.S. manufacturing industries are 4 and...
Persistent link: https://www.econbiz.de/10011508062
The degree of endemic volatility in the number of firms and establishments varies considerably across industries. Examining the within-industry range of variation (max.-min.) of the number of firms over our sample period, the low and high values across U.S. manufacturing industries are 4 and...
Persistent link: https://www.econbiz.de/10013319863
gasoline market confirms that increases in concentration reduce product variety. Ignoring this product variety effect is likely …
Persistent link: https://www.econbiz.de/10010261269