China's population has declined for the fourth year in a row as the birthrate hits a record low. The government has introduced a number of subsidies to increase the birthrate, including a tax on condoms. 7NEWS spoke to Senior Research Fellow Dr Xiujian Peng from Victoria University's Centre of Policy Studies about the social and economic impacts of population decline, as well as to Chen Liu about how this data affects young Chinese people. #china #asia #population #populationdecline #costoflivin