(1) (2) (3) (4) (5) (6) VARIABLES LABELS M common M common M common M common M common M common syntheticT (mean) syntheticT 0.008 0.008 0.008 0.008 0.010 0.010 (0.004) (0.004) (0.004) (0.004) (0.004) (0.004) Observations 270 270 270 270 279 279 F-stat 3.4 3.4 3.4 3.4 3.3 3.2 Standard errors in parentheses