Using Quantile Smoothing Splines to
نویسنده
چکیده
The goal of this paper is to provide a statistically based deenition of employment subcenters for multicentric urban areas. In particular, we examine the shape of the employment density function using quantile smoothing splines as a nonparametric empirical speciication. This approach allows inspection of the employment gradient at the upper tail rather than the center of the employment density distribution. As a result, our deenition of employment subcenters extends previous work as it allows us to condition on distance from the central business district, relies on the extent to which a subcenter innuences surrounding areas, yet still emphasizes areas with high employment densities. All opinions expressed are the authors' alone, and any remaining errors are ours.
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