This paper studies how limitations on land suitable for development affect within-city variation in urban density and its three components: crowding, residential coverage, and building height. We use the high variation in geographical obstacles − such as steep land slopes and the presence of...

The commonly-used satellite images of nighttime lights fail to capture the true brightness of most cities. We show that night lights are a reliable proxy for economic activity at the city level, provided they are first corrected for top-coding. We present a stylized model of urban luminosity and...