| manufacturing | service | wholesale and retail | natural resources | |||||||||
N | 312 | 203 | 32 | 36 | |||||||||
windows | 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 | |
mean | 0.3092*** | 0.2844*** | 0.2619*** | 0.1840*** | 0.1743*** | 0.1682*** | 0.2252*** | 0.2405*** | 0.2136*** | 0.1445** | 0.1049*** | 0.1068*** | |
t-statistics | (13.8258) | (18.1753) | (18.3555) | (8.3712) | (12.1562) | (13.5146) | (3.0059) | (5.3433) | (4.4905) | (2.5809) | (2.7929) | (3.8498) | |
p-statistics | (0.0000) | (0.0000) | (0.0000) | (0.0000) | (0.0000) | (0.0000) | (0.0047) | (0.0000) | (0.0001) | (0.0138) | (0.0081) | (0.0004) | |