| variable | apply | iapply | 
| subsidy | 0.0624*** | 0.0675*** | 
| (12.5049) | (13.0965) | |
| age | −0.1489*** | −0.1097*** | 
| (−7.1591) | (−5.1161) | |
| size | 0.4752*** | 0.4937*** | 
| (34.0693) | (34.3161) |