YEAR // 调查/普查年份Census / survey year
样本年份，跨年分析核心时间变量
| dataset | ipums_usa · IPUMS USA Harmonized Microdata |
| type | identifier |
| role | time |
| data file | extract |
| keywords | year年份 |
| dataset | variable | label | type |
|---|---|---|---|
| compustat_na | fyear | Fiscal Year | identifier |
| dhs | v007 | Year of Interview | identifier |
| eusilc2022 | DB010 | Year of Survey | identifier |
| gsoep | syear | Survey Year | identifier |
| gss2022 | year | Survey Year | identifier |
| imf_macro | year | 年份 | identifier |
| nbs_macro | year | 年份 | identifier |
| oecd_macro | TIME_PERIOD | 时期 | identifier |
| worldbank_wdi | year | 年份 | identifier |
| yearbook_city | year | 年份 | identifier |
| 教育回报与工资收入 | control |
| 群体就业差异 | control |