Output from Eq. (1) reporting marginal effects
| Variables | In-house R&D | External R&D | New-to-market | New-to-firm | Process innovation |
|---|---|---|---|---|---|
| Exploratory linkages | 0.251*** | 0.199*** | 0.121*** | 0.123*** | 0.279*** |
| (0.041) | (0.044) | (0.043) | (0.040) | (0.041) | |
| Exploitative linkages | −0.046 | −0.127 | −0.005 | −0.109 | −0.078 |
| (0.124) | (0.134) | (0.121) | (0.115) | (0.131) | |
| Exploratory linkages2 | −0.023*** | −0.016*** | −0.006 | −0.007* | −0.023*** |
| (0.004) | (0.004) | (0.004) | (0.004) | (0.004) | |
| Exploitative linkages2 | 0.039 | 0.074* | 0.010 | 0.042 | 0.051 |
| (0.040) | (0.043) | (0.039) | (0.036) | (0.044) | |
| Firm size (log) | 0.001 | 0.025 | 0.036 | −0.009 | 0.099*** |
| (0.024) | (0.028) | (0.025) | (0.024) | (0.023) | |
| Firm age (log) | 0.061 | −0.032 | −0.038 | 0.016 | −0.074* |
| (0.047) | (0.051) | (0.044) | (0.042) | (0.039) | |
| % University education | 0.003** | −0.000 | −0.001 | 0.001 | 0.001 |
| (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | |
| Multi plant | 0.165** | 0.085 | 0.163** | −0.020 | −0.100 |
| (0.071) | (0.087) | (0.082) | (0.077) | (0.084) | |
| Received subsidy | 0.212** | 0.176* | 0.036 | 0.046 | 0.114 |
| (0.083) | (0.091) | (0.093) | (0.084) | (0.088) | |
| Project developer | 0.264*** | 0.157 | 0.350*** | −0.106 | 0.265*** |
| (0.047) | (0.193) | (0.131) | (0.155) | (0.086) | |
| Technology supplier | 0.376*** | 0.325** | 0.187 | −0.022 | 0.216* |
| (0.080) | (0.144) | (0.120) | (0.130) | (0.113) | |
| Service or consultancy | 0.015 | 0.090 | 0.085 | −0.106 | 0.209* |
| (0.104) | (0.157) | (0.118) | (0.129) | (0.119) | |
| European | 0.038 | 0.124 | −0.048 | −0.299*** | −0.111 |
| (0.105) | (0.121) | (0.124) | (0.077) | (0.132) | |
| Irish | −0.259** | −0.073 | −0.102 | −0.172** | 0.030 |
| (0.110) | (0.102) | (0.097) | (0.082) | (0.091) | |
| Observations | 199 | 199 | 199 | 199 | 199 |
| Wald Chi-square (prob) | 98.51 | 65.85 | 56.13 | 40.61 | 92.90 |
| (0.000) | (0.000) | (0.000) | (0.002) | (0.000) | |
| Pseudo R2 | 0.504 | 0.317 | 0.233 | 0.169 | 0.418 |
| Variables | In-house R&D | External R&D | New-to-market | New-to-firm | Process innovation |
|---|---|---|---|---|---|
| Exploratory linkages | 0.251*** | 0.199*** | 0.121*** | 0.123*** | 0.279*** |
| (0.041) | (0.044) | (0.043) | (0.040) | (0.041) | |
| Exploitative linkages | −0.046 | −0.127 | −0.005 | −0.109 | −0.078 |
| (0.124) | (0.134) | (0.121) | (0.115) | (0.131) | |
| Exploratory linkages2 | −0.023*** | −0.016*** | −0.006 | −0.007* | −0.023*** |
| (0.004) | (0.004) | (0.004) | (0.004) | (0.004) | |
| Exploitative linkages2 | 0.039 | 0.074* | 0.010 | 0.042 | 0.051 |
| (0.040) | (0.043) | (0.039) | (0.036) | (0.044) | |
| Firm size (log) | 0.001 | 0.025 | 0.036 | −0.009 | 0.099*** |
| (0.024) | (0.028) | (0.025) | (0.024) | (0.023) | |
| Firm age (log) | 0.061 | −0.032 | −0.038 | 0.016 | −0.074* |
| (0.047) | (0.051) | (0.044) | (0.042) | (0.039) | |
| % University education | 0.003** | −0.000 | −0.001 | 0.001 | 0.001 |
| (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | |
| Multi plant | 0.165** | 0.085 | 0.163** | −0.020 | −0.100 |
| (0.071) | (0.087) | (0.082) | (0.077) | (0.084) | |
| Received subsidy | 0.212** | 0.176* | 0.036 | 0.046 | 0.114 |
| (0.083) | (0.091) | (0.093) | (0.084) | (0.088) | |
| Project developer | 0.264*** | 0.157 | 0.350*** | −0.106 | 0.265*** |
| (0.047) | (0.193) | (0.131) | (0.155) | (0.086) | |
| Technology supplier | 0.376*** | 0.325** | 0.187 | −0.022 | 0.216* |
| (0.080) | (0.144) | (0.120) | (0.130) | (0.113) | |
| Service or consultancy | 0.015 | 0.090 | 0.085 | −0.106 | 0.209* |
| (0.104) | (0.157) | (0.118) | (0.129) | (0.119) | |
| European | 0.038 | 0.124 | −0.048 | −0.299*** | −0.111 |
| (0.105) | (0.121) | (0.124) | (0.077) | (0.132) | |
| Irish | −0.259** | −0.073 | −0.102 | −0.172** | 0.030 |
| (0.110) | (0.102) | (0.097) | (0.082) | (0.091) | |
| Observations | 199 | 199 | 199 | 199 | 199 |
| Wald Chi-square (prob) | 98.51 | 65.85 | 56.13 | 40.61 | 92.90 |
| (0.000) | (0.000) | (0.000) | (0.002) | (0.000) | |
| Pseudo | 0.504 | 0.317 | 0.233 | 0.169 | 0.418 |
Note(s): Robust standard errors in parentheses
***p < 0.01, **p < 0.05 and *p < 0.1
Reference categories: Asset operators, asset owner/operator and other-type firm and UK
Source(s): Authors’ own work