Month | 2003-2007 | 2008-2012 | ||||||
CAR | StdDev | t-stat | Size | CAR | StdDev | t-stat | Size | |
12 | −0.009 | 0.156 | −1.094 | 331 | 0.097*** | 0.173 | 9.379 | 282 |
24 | 0.091*** | 0.179 | 9.215 | 331 | 0.199*** | 0.147 | 18.295 | 204 |
36 | 0.189*** | 0.136 | 25.165 | 331 | 0.505*** | 0.126 | 41.512 | 109 |