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This chapter surveys empirical models of market structure. We pay particular attention to equilibrium models that interpret cross-sectional variation in the number of firms or firm turnover rates. We begin by discussing what economists can in principle learn from models with homogeneous...
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Schumpeterian growth theory has operationalized Schumpeter’s notion of creative destruction by developing models based on this concept. These models shed light on several aspects of the growth process that could not be properly addressed by alternative theories. In this survey, we focus on...
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Survey forecasts are prone to entry and exit of forecasters as well as forecasters not contributing every period …
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role of input entry and exit in driving economic growth. …
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This paper estimates a dynamic, structural model of entry and exit in an oligopolistic industry and uses it to quantify …. Entry costs faced by potential entrants, fixed costs faced by incumbent producers, and the toughness of short-run price … the dentist industry allow the entry cost to differ for geographic markets that were designated as Health Professional …
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We use a dynamic oligopoly model of entry and exit to evaluate how entry regulations affect profitability and market … stores in Sweden, we find that the average entry costs for small and large stores are 10 and 18 percent lower, respectively …, in markets with liberal compared with restrictive regulations. Counterfactual simulations show that lower entry costs in …
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