| Dependent variable | Retirement age | Retirement age (unit: years) |
| Main explanatory variables | Has R.E. income | 1 if there is real estate income, 0 otherwise |
| Log (R.E. income) | Logarithm of real estate income (unit: 10,000 won) |
| Log (R.E. income ratio) | Logarithm of the ratio of real estate income to household income (unit: %) |
| Income | Log (income) | Logarithm of household income (unit: 10,000 won) |
| Age | 30s | 1 if you are in your 30s, 0 otherwise. |
| 40s | 1 if you are in your 40s, 0 otherwise. |
| 50s | 1 if you are in your 50s, 0 otherwise. |
| 60s | 1 if you are in your 60s, 0 otherwise. |
| Working status | Wage worker | 1 if employee, 0 otherwise. |
| Self-employed | 1 if self-employed, 0 otherwise |
| Marital status | Single | 1 if never married, 0 otherwise |
| Spouse | 1 if married and has a spouse, 0 otherwise |
| Non-spouse | 1 if married but no spouse, 0 otherwise. |
| Health status | Health | 1 if your health is very bad, 2 if it is bad, 3 if it is average, 4 if it is good, and 5 if it is very good. |
| Education | No_high school | 1 if not graduate from high school, 0 otherwise |
| High school | 1 if graduated from high school, 0 otherwise |
| College | 1 if graduated from college, 0 otherwise |
| Gender | Male | 1 if male, 0 if female |
| Female | 1 if female, 0 if male |
| Region | Seoul | 1 if live in Seoul, 0 otherwise |
| Busan | 1 if live in Busan, 0 otherwise |
| Daegu | 1 if live in Daegu, 0 otherwise |
| Incheon | 1 if live in Incheon, 0 otherwise |
| Gwangju | 1 if live in Gwangju, 0 otherwise |
| Daejeon | 1 if live in Daejeon, 0 otherwise |
| Ulsan | 1 if live in Ulsan, 0 otherwise |
| Gyeonggi | 1 if live in Gyeonggi, 0 otherwise |
| Gangwon | 1 if live in Gangwon, 0 otherwise |
| Chungbuk | 1 if live in Chungbuk, 0 otherwise |
| Chungnam | 1 if live in Chungnam, 0 otherwise |
| Jeonbuk | 1 if live in Jeonbuk, 0 otherwise |
| Jeonnam | 1 if live in Jeonnam, 0 otherwise |
| Gyeongbuk | 1 if live in Gyeongbuk, 0 otherwise |
| Gyeongnam | 1 if live in Gyeongnam, 0 otherwise |
| Jeju | 1 if live in Jeju, 0 otherwise |
| Sejong | 1 if live in Sejong, 0 otherwise |