I often support increased density on the grounds that this is what the market wants. To me, that’s still reason enough to support the repeal of many land use regulations, but Avent offers a vision of density that is perhaps more compelling to more people. Because the division of labor is limited by the size of the market, cities offer many amenities that are not supported in less dense places. The diversity of food, art, shopping, sports, and movies is all much greater in cities than in small towns because larger markets allow for more specialization. Of course taste is subjective; many people prefer the quiet of the suburbs to the chaos of the city. However we can see that currently, many people want to move to cities but are unable to by looking at vacancy and rental rates.
Avent also points out that cities provide a sort of employment “insurance.” He uses the example of a Vietnamese chef losing his job. If the restaurant where he worked is in a large metropolitan area, he will be able to find another job in a Vietnamese restaurant. On the other hand, if he lives in a small town, he will likely have to seek employment in a more generic restaurant where he won’t be able to charge a premium for his specialized skills. This is true for jobs in many industries. If I were to lose my job in economics research, I’d much rather be searching for a new job here in DC than in a state with one think tank, for example.
Avent goes on to discuss the empirical evidence that people are more productive in cities, citing many and varied studies that demonstrate this fact along with the theoretical reasons that cities act as “economic processors.” By artificially restricting the potential supply of housing and office space, land use regulations prevent people from moving to cities, thereby limiting their earning potential. More clearly than any other work I’ve read, The Gated City brings together the research demonstrating that people are more innovative and productive in dense population centers with the harmful impact of zoning laws. Avent acknowledges that density has decreasing returns; at some level of density average worker productivity will begin falling. There is no reason that the market wouldn’t recognize this though, and shift to building out rather than up in a world of free land use.
Full Story: Some Belated Thoughts on The Gated City
Source: Market Urbanism, November 16, 2011
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