Estimated Parameters of Propensity Score for the Trimmed Lottery Data
| Variable | Estimated | (Standard Error) |
|---|---|---|
| Intercept | 21.77 | (0.13) |
| Preselected linear terms | ||
| Tickets bought | −0.08 | (0.46) |
| Years of schooling | −0.45 | (0.08) |
| Working then | 3.32 | (1.95) |
| Earnings year–1 | −0.02 | (0.01) |
| Additional linear terms | ||
| Age | −0.05 | (0.01) |
| Pos earnings year–5 | 1.27 | (0.42) |
| Year won | −4.84 | (1.53) |
| Earnings year–5 | −0.04 | (0.02) |
| Second-order terms | ||
| Year won × year won | 0.37 | (0.12) |
| Tickets bought × year won | 0.14 | (0.06) |
| Tickets bought × tickets bought | −0.04 | (0.02) |
| Working then × year won | −0.49 | (0.30) |