Comparison of results from OLS, FE, RE and FE-ROBUST in Model 1
| Variables | (1) OLS | (2) FE | (3) RE |
|---|---|---|---|
| Enterprises_providing_portable_d | −0.0504** (0.0243) | −0.0504** (0.0221) | −0.00250 (0.00923) |
| Internet_access_of_employees | 0.0391 (0.0822) | 0.0391 (0.0668) | 0.0106 (0.0301) |
| E_provided_ICT_training | −0.0206 (0.0243) | −0.0206 (0.0358) | −0.00911 (0.0176) |
| R&D_expenditure | 0.619 (0.507) | 0.619 (0.931) | −0.161 (0.151) |
| Employees | −0.211*** (0.0554) | −0.211*** (0.0574) | −0.146*** (0.0431) |
| Education | −0.0392** (0.0185) | −0.0392 (0.0299) | −0.00308 (0.0141) |
| Type_of_connection | −0.0545 (0.0424) | −0.0545 (0.0409) | −0.0261 (0.0205) |
| Constant | 6.701 (10.51) | 6.701 (7.159) | 3.326 (2.629) |
| Observations | 90 | 90 | 90 |
| R2 | 0.336 | 0.336 | 0.336 |
| Number of ID | 25 | 25 | 25 |
| Variables | (1) OLS | (2) FE | (3) RE |
|---|---|---|---|
| Enterprises_providing_portable_d | −0.0504 | −0.0504 | −0.00250 (0.00923) |
| Internet_access_of_employees | 0.0391 (0.0822) | 0.0391 (0.0668) | 0.0106 (0.0301) |
| E_provided_ICT_training | −0.0206 (0.0243) | −0.0206 (0.0358) | −0.00911 (0.0176) |
| R&D_expenditure | 0.619 (0.507) | 0.619 (0.931) | −0.161 (0.151) |
| Employees | −0.211 | −0.211 | −0.146 |
| Education | −0.0392 | −0.0392 (0.0299) | −0.00308 (0.0141) |
| Type_of_connection | −0.0545 (0.0424) | −0.0545 (0.0409) | −0.0261 (0.0205) |
| Constant | 6.701 (10.51) | 6.701 (7.159) | 3.326 (2.629) |
| Observations | 90 | 90 | 90 |
| 0.336 | 0.336 | 0.336 | |
| Number of ID | 25 | 25 | 25 |
Standard errors in parentheses: ***p < 0.01, **p < 0.05 and *p < 0.1
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