Table 3 Difference-in-difference (DID) estimator, δ3 in the main analysis and robustness test using Year −3 as baseline
From: Impact of hospital mergers on staff job satisfaction: a quantitative study
Year, t | (1) Main analysis | (2) Robustness test | |
|---|---|---|---|
First to third closest PS | Fourth to sixth closest PS | Seventh to ninth closest PS | |
−2 | 0.027a | 0.019 | 0.025 |
(0.013) | (0.013) | (0.013) | |
−1 | 0.035b | 0.033b | 0.042b |
(0.012) | (0.012) | (0.012) | |
0 | 0.021 | 0.006 | 0.018 |
(0.012) | (0.013) | (0.013) | |
1 | 0.057b | 0.043b | 0.051b |
(0.015) | (0.015 | (0.016) | |
2 | 0.003 | 0.014 | 0.002 |
(0.025) | (0.022) | (0.028) | |
3 | 0.031 | 0.037 | 0.049 |
(0.027) | (0.029) | (0.026) | |
4 | −0.019 | −0.030 | −0.017 |
(0.036) | (0.038) | (0.037) | |