This article examines the impact of mainland Chinese buyers in the Hong Kong housing market, using complete transaction records between 2001 and 2017. We find that mainland buyers pay an average price premium of 1.4% compared with locals. The premiums are estimated to be 3.5% for large-sized luxury units and 1.6% for homes in central locations. The mechanisms that underlie the price premiums include a hedging effect, residential sorting, and information barriers, of which the hedging motive has the strongest impact. Mainland buyers’ price premiums rise significantly when the Chinese currency depreciates or China Economic Policy Uncertainty increases. Our study sheds light on the impact and mechanism of the ““China shock” on the global housing markets.

We identify exposure to political risk by exploiting a unique variation around land lease extension protection after 2047 in Hong Kong’s housing market due to historical arrangements. Relative to properties that have been promised an extension protection, those with unprotected leases granted by the current government are sold at a discount of 8 percent; those with colonial leases suffer an additional discount of 8 percent. Incorporating estimated structural parameters that suggest an additional 20 percent ground rent after 2047, our model matches empirical discounts well across lease horizons. Discounts increase over time, particularly in areas with greater pessimism about the city’s future.