1.  China's Rising Demand for "Green Cities":  Evidence fromCross-City Real Estate Price Hedonicsby Siqi Zheng, Jing Cao, Matthew E. Kahn  -  #16992 (EEE)
http://papers.nber.org/papers/W16992

2.  Does Government Investment in Local Public Goods SpurGentrification? Evidence from Beijingby Siqi Zheng, Matthew E. Kahn  -  #17002 (EEE PE)
http://papers.nber.org/papers/W17002