A Systems View Across Time and Space
Table 3 Innovation and labour productivity (controlling for firm size)
From: Labour productivity among small- and medium-scale enterprises in Uganda: the role of innovation
Variable | Model 1 OLS | Model 2 25th percentile | Model 3 50th percentile | Model 4 75th percentile |
|---|---|---|---|---|
Innov | ||||
 Innovation_1 | 0.173 (0.456) | 0.0146 (0.950) | 0.173 (0.456) | 0.0375 (0.874) |
 Innovation_2 | − 0.185 (0.441) | 0.260 (0.279) | − 0.185 (0.441) | − 0.546** (0.026) |
 Innovation_3 | 0.262 (0.212) | 0.478** (0.024) | 0.262 (0.212) | − 0.0376 (0.860) |
 Innovation_4 | 0.639*** (0.001) | 0.957*** (0.000) | 0.639*** (0.001) | 0.0840 (0.672) |
Firm age | 0.0497** (0.021) | 0.00469 (0.827) | 0.0497** (0.021) | − 0.0288 (0.187) |
Firm age squared | − 0.802** (0.042) | − 0.0750 (0.850) | − 0.802** (0.042) | 1.062*** (0.008) |
Manager’s years’ experience | 0.0127 (0.214) | 0.0481*** (0.000) | 0.0127 (0.214) | 0.00249 (0.810) |
Certification (1 = yes) | − 0.0194 (0.924) | − 0.362* (0.076) | − 0.0194 (0.924) | − 0.217 (0.293) |
Exporter (1 = yes) | 0.753** (0.010) | 1.360*** (0.000) | 0.753** (0.010) | 1.515*** (0.000) |
Use ICT (1 = yes) | 1.175*** (0.000) | 1.439*** (0.000) | 1.175*** (0.000) | 1.262*** (0.000) |
Gender (1 = yes) | 0.125 (0.443) | − 0.213 (0.193) | 0.125 (0.443) | 0.0692 (0.676) |
Tax rate burden(1 = yes) | − 0.540*** (0.000) | − 0.570*** (0.000) | − 0.540*** (0.000) | − 0.930*** (0.000) |
Transport burden (1 = yes) | − 0.197 (0.174) | − 0.177 (0.221) | − 0.197 (0.174) | 0.587*** (0.000) |
Land access (1 = yes) | − 0.122 (0.400) | − 0.00248 (0.986) | − 0.122 (0.400) | − 0.224 (0.129) |
Corruption (1 = yes) | 0.0883 (0.562) | − 0.102 (0.504) | 0.0883 (0.562) | − 0.325** (0.036) |
Labour education (1 = yes) | − 0.216 (0.164) | − 0.0883 (0.571) | − 0.216 (0.164) | − 0.361** (0.023) |
Electricity burden (1 = yes) | − 0.0981 (0.477) | 0.0893 (0.519) | − 0.0981 (0.477) | 0.0139 (0.921) |
Credit access (1 = yes) | 0.295* (0.056) | − 0.188 (0.222) | 0.295* (0.056) | 0.506*** (0.001) |
Medium (1 = yes) | 0.471*** (0.003) | − 0.161 (0.308) | 0.471*** (0.003) | 0.484*** (0.003) |
Sectoral fixed effects | Yes | Yes | Yes | Yes |
Regional fixed effects | Yes | Yes | Yes | Yes |
Constant | 14.92*** (0.000) | 15.35*** (0.000) | 14.92*** (0.000) | 17.15*** (0.000) |
Observations | 347 | 347 | 347 | 347 |
R 2 | 0.143 | 0.118 | 0.143 | 0.166 |