SECTOR | N | Range | Minimum | Maximum | Mean | Std. Deviation | Variance | ||
Statistic | Statistic | Statistic | Statistic | Statistic | Std. Error | Statistic | Statistic | ||
AGRICULTURE | Before tax reform | 12 | 0.06 | 0.01 | 0.07 | 0.0314 | 0.01234 | 0.02468 | 0.001 |
After tax reform | 12 | 0.08 | 0.19 | 0.27 | 0.2294 | 0.01936 | 0.03873 | 0.001 | |
CONGLOMERATE | Before tax reform | 20 | 0.24 | 0.06 | 0.29 | 0.2095 | 0.05190 | 0.10381 | 0.011 |
After tax reform | 20 | 0.62 | −0.10 | 0.52 | 0.1353 | 0.13540 | 0.27079 | 0.073 | |
CONSTRUCTION | Before tax reform | 12 | 0.08 | 0.15 | 0.23 | 0.1758 | 0.01873 | 0.03746 | 0.001 |
After tax reform | 12 | 0.10 | 0.13 | 0.23 | 0.1945 | 0.02250 | 0.04501 | 0.002 | |
CONSUMER GOODS | Before tax reform | 68 | 0.09 | 0.10 | 0.19 | 0.1535 | 0.02190 | 0.04380 | 0.002 |
After tax reform | 68 | 0.05 | 0.18 | 0.22 | 0.1977 | 0.00979 | 0.01958 | 0.000 | |
FIN SERVICES | Before tax reform | 68 | 0.12 | 0.13 | 0.25 | 0.1994 | 0.02511 | 0.05022 | 0.003 |
After tax reform | 68 | 0.28 | 0.03 | 0.32 | 0.1537 | 0.05961 | 0.11922 | 0.014 | |
HEALTH | Before tax reform | 28 | 0.39 | 0.31 | 0.70 | 0.4144 | 0.09517 | 0.19034 | 0.036 |
After tax reform | 28 | 0.14 | 0.06 | 0.20 | 0.1252 | 0.02887 | 0.05774 | 0.003 | |
INDUSTRIAL GOODS | Before tax reform | 68 | 1.14 | −0.97 | 0.17 | −0.1325 | 0.27914 | 0.55829 | 0.312 |
After tax reform | 68 | 1.22 | 0.13 | 1.35 | 0.4524 | 0.29813 | 0.59627 | 0.356 | |
INFOR | Before tax reform | 8 | 0.53 | 0.00 | 0.52 | 0.2052 | 0.11253 | 0.22506 | 0.051 |
After tax reform | 8 | 0.08 | 0.10 | 0.18 | 0.1478 | 0.01733 | 0.03466 | 0.001 | |
NAT RESOURCES | Before tax reform | 8 | 0.27 | −0.07 | 0.20 | 0.1039 | 0.06073 | 0.12145 | 0.015 |
After tax reform | 8 | 0.14 | 0.21 | 0.36 | 0.3037 | 0.03240 | 0.06480 | 0.004 | |
OIL AND GAS | Before tax reform | 24 | 0.06 | 0.18 | 0.24 | 0.2090 | 0.01526 | 0.03052 | 0.001 |
After tax reform | 24 | 0.03 | 0.15 | 0.19 | 0.1707 | 0.00736 | 0.01472 | 0.000 | |
SERVICES | Before tax reform | 28 | 0.18 | 0.11 | 0.30 | 0.2140 | 0.03780 | 0.07561 | 0.006 |
After tax reform | 28 | 0.58 | −0.08 | 0.50 | 0.2201 | 0.12237 | 0.24475 | 0.060 |