Table 4.
Event window | Cumulative abnormal returns (CARs) |
t-Statistics | p-Value | |
---|---|---|---|---|
Mean | SD | |||
t0 − t1 | −2.483 | 4.544 | −3.456 | .001** |
t0 − t2 | −3.929 | 5.821 | −4.269 | .000*** |
t0 − t3 | −3.957 | 6.508 | −3.846 | .000*** |
t0 − t4 | −4.408 | 7.029 | −3.966 | .000*** |
t0 − t5 | −5.291 | 8.931 | −3.747 | .001** |
≈ | ||||
t0 − t10 | −5.170 | 10.514 | −3.110 | .003** |
≈ | ||||
t0 − t20 | −5.392 | 10.784 | −3.162 | .003** |
≈ | ||||
t0 − t30 | −5.508 | 12.494 | −2.788 | .008** |
≈ | ||||
t0 − t57 | −6.812 | 20.386 | −2.060 | .046* |
t0 − t58 | −6.623 | 20.476 | −1.994 | .054 |
t0 − t59 | −5.656 | 20.340 | −1.714 | .095 |
≈ | ||||
t0 − t253 | −.827 | 38.293 | −.118 | .907 |
t0 − t254 | −.405 | 35.532 | −.063 | .951 |
t0 − t255 | .756 | 34.248 | .121 | .905 |
t0 − t256 | 1.296 | 33.874 | .210 | .835 |
≈ | ||||
t0 − t370 | 5.008 | 37.437 | .682 | .501 |
t0 − t371 | 5.568 | 38.135 | .745 | .463 |
p < .05.
p < .01.
p < .001.