The (literally) steepest slope: spatial, temporal, and elevation variance gradients in urban spatial modelling
利用香港公共住房数据，研究发现公寓与地铁站之间的坡度差异可导致房价差异高达20%，且购房者对未来地铁站的预期效应在开通前两年已折现60%。
This paper presents an analysis of elevation gradient and temporal future-station effects in urban real estate markets. Using a novel dataset from the Hong Kong publicly constructed housing sector, we find enormous housing price effects caused by levels of terrain incline between apartments and subway stations. Ceteris paribus, two similar apartments with closest metro stations of the same walking distance may sell at a difference of up to 20% because of differences in the apartment-station slope alone. Anticipatory effects are similarly robust: apartment buyers regard a future, closer metro station as being 60% present when making purchases 2 years prior to its opening.