a dynamic model of firm entry and steam adoption, we find that the interaction of switching barriers and high fixed … costs creates a quantitatively important and socially inefficient drag on technology adoption. Despite substantial entry and …

accelerated generic entry via these challenges. Using aggregate brand level sales data between 1997 and 2008 for hypertension …

economic policies such as barriers to entry or trade liberalization. Using a multi-country model of production and trade … calibrated to the observed distribution of firm size, we show that the welfare impact of high entry costs is small. In the sample … of the largest 50 economies in the world, a reduction in entry costs all the way to the U.S. level leads to an average …

of goods and services and do not account for firms' entry in the product market. In this paper we revisit the …

This paper studies the role of endogenous producer entry and product creation for monetary policy analysis and business … prices, but lets the consumer price index vary to accommodate changes in the number of available products. The free entry …

of regulating ATM surcharges on ATM entry and consumer and producer surplus. We estimate the model using data on firm and … evidence shows that the estimator performs well. We find that a ban on ATM surcharges reduces ATM entry by about 12 percent …. This paper can help shed light on the theoretically ambiguous implications of free entry on consumer and producer welfare …

and cross-city data to measure the effect of the fixed commission rate on market entry by real-estate agents. We show that … if the commission rate does not vary and if there are low barriers to entry to the real-estate brokerage business, the … entry of real-estate agents into cities with high housing prices is socially inefficient. Consistent with our model, we find …