China's Evergrande Group - the world’s most indebted real estate developer - has offered to pay back some of its investors with some of its properties.
The company has been struggling to raise funds to pay debts estimated at $300bn.
If it fails it could affect China's economy - the world's second-largest - but China pumped more cash into its banking system on Friday to avert a liquidity squeeze.
"Housing price to income ratio" refers to the ratio of the average home price to the average annual household income.
According to China's national housing price statistics for 2020, mainland China ranks first among the world's top economies regarding housing price to income, with a value close to 30. In other words it takes a Chinese household 30 years, without eating or drinking to afford a home.