“…Indeed, since the marketisation reform in the late 1990s, the 'Great Housing Boom' of China (Chen & Wen, 2017) has always been an important topic on the research agenda, not only because the boom is unprecedented itself, but also because the housing market is believed to have supported (if not 'hijacked') the Chinese economy over the past two decades. For some basic facts, in this period the real house prices in major Chinese cities were growing by 15%-20% per annum (Chen & Wen, 2017;Liu & Ou, 2021); annual real estate investment was about 20% of the stock of fixed assets and 10% of the GDP (Li & Malpezzi, 2015); urban residential floor space has grown to over 30 m 2 per capita by the late 2000s compared the long-term pre-reform level of about 15 m 2 (Chow & Niu, 2015). As pointed out by Sun (2020), the reform, which was a transition from welfare housing to private housing in the very period of rapid urban expansion, has brought about a series of social and political issues including a substantial decline in housing affordability.…”