Results of the Andrews–Zivot unit root tests for structural break: aggregate US health-care inflation rate, 1966-2006
| Break | Observed minimum t-statistic | 1% critical value |
|---|---|---|
| Breaks in intercept only | −5.067 | −5.34 |
| Breaks in trend only | −3.757 | −5.34 |
| Breaks in both intercept and trend | −5.081 | −5.57 |
| Break | Observed minimum | 1% critical value |
|---|---|---|
| Breaks in intercept only | −5.067 | −5.34 |
| Breaks in trend only | −3.757 | −5.34 |
| Breaks in both intercept and trend | −5.081 | −5.57 |
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