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The Agglomeration of Urban Amenities

其他書名	Evidence from Milan Restaurants
出版	National Bureau of Economic Research, 2022
URL	http://books.google.com.hk/books?id=pnzpzgEACAAJ&hl=&source=gbs_api

註釋In many cities, restaurants and retail establishments are spatially concentrated. Economists have long recognized the presence of demand externalities that arise from spatial agglomeration as a possible explanation, but empirically identifying this type of spillovers has proven difficult. We test for the presence of agglomeration spillovers in Milan's restaurant sector using the abolition of a unique regulation that until recently restricted where new restaurants could locate. Before 2005, Milan mandated a minimum distance between restaurants that kept the spatial distribution of restaurants artificially uniform. As a consequence, restaurants were evenly distributed across neighborhoods. The regulation was abolished in 2005 by a nationwide reform that allowed new restaurants to locate anywhere in the city. Using administrative data on the universe of restaurants and retail establishments in Milan between 2000 and 2012, we study how the spatial distribution of restaurants changed after the reform. Consistent with the existence of significant agglomeration externalities, we find that after 2005, the geographical concentration of restaurants increased sharply. By 2012, 7 years after the liberalization of restaurant entry, the city's restaurants had agglomerated in some neighborhoods and deserted others. By contrast, not much happened to the spatial concentration of retail establishments or even retail establishments that sell food, which were never covered by the minimum distance regulations and therefore were not directly affected by its reform. We also find that in neighborhoods where the number of restaurants grew the most after the reform, restaurants reacted to the increased competition by becoming more differentiated based on price, quality and type of cuisine.