## 5 Results  
### Descriptive Results  
Table 4 displays the basic descriptions for the variables. As demonstrated, about 47% of the enterprises introduced at least one kind of innovation with environmental benefits during 2012-2014, and around 18% of the enterprises had a contract for domestic or foreign public sectors. On average, the firms costed 10% of their total turnovers on innovation activities in 2014, and the average high-quality human resources fell at a 5-9% interval. Approximately 20% of the companies had procedures in place to regularly identify and address environmental challenges. Thirty-six percent of them cooperated with other actors, the most frequently with suppliers and with actors within their country. In addition, the \begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**Regressors**} & \multicolumn{4}{c}{**Significance**} \\ \cline{2-5}  & **(1)** & **(2)** & **(3)** & **(4)** \\ \hline \multicolumn{5}{c}{**Public financial support/FUND**} & \(\surd\) & – & – & – \\ \hline Local or regional authorities/FUNLOC & – & \(\surd\) & & \\ \hline Central government/FUNGMT & – & \(\surd\) & & \\ \hline European Union/FUNEU & – & & & \\ \hline \multicolumn{5}{c}{**Cooperation with other actors/CO**} & \(\surd\) & – & – & – \\ \hline CO1 & – & \(\surd\) & \(\surd\) & \(\surd\) \\ \hline CO2 & – & & & \\ \hline CO31 & – & \(\surd\) & \(\surd\) & \(\surd\) \\ \hline CO32 & – & \(\surd\) & \(\surd\) & \(\surd\) \\ \hline CO4 & – & & & \\ \hline CO5 & – & & & \\ \hline CO6 & – & \(\surd\) & \(\surd\) & \(\surd\) \\ \hline CO7 & – & & & \\ \hline \multicolumn{5}{c}{Expenditure on innovation activities/RD} \\ \hline Applied for a patent, trademark, European utility model, or industrial design & \(\surd\) & \(\surd\) & \(\surd\) & \(\surd\) \\ \multicolumn{5}{c}{right/COMPET} \\ \hline Environmental management/ENVMG & \(\surd\) & \(\surd\) & \(\surd\) & \(\surd\) \\ \hline Ln turnover in 2014/LNSIZE1 & & & \\ \hline Largest market/LARMAR & \(\surd\) & \(\surd\) & \(\surd\) & \(\surd\) (for square) \\ \hline \multicolumn{5}{c}{\% of employees with a tertiary degree/EMPRD} & \(\surd\) & \(\surd\) & \(\surd\) & \(\surd\) \\ \hline Employee number/SIZE2 & \(\surd\) & \(\surd\) & dummies & dummies \\ \hline Main activities or sectors & \(\surd\) & \(\surd\) & dummies & dummies \\ \hline Nations & & & dummies & dummies \\ \hline Intercept & \(\surd\) & \(\surd\) & \(\surd\) & \(\surd\) \\ \hline Correct prediction rate & 75.6\% & 76.5\% & 77.8\% & 77.8\% \\ \hline Pseudo R\({}^{2}\) & 0.076 & 0.090 & 0.126 & 0.127 \\ \hline \hline \end{tabular} Source: author’s elaboration. “\(\surd\)” means the coefficient is significant at 95% or 99% level. “–\(\cdot\)” means the variable is not included in the regression. The blank cell means not statistically significant. FUNLOC, FUNGMT, and FUNEU are sub-variables for public financial funds (FUND), CO1, CO2, CO31, CO32, CO4, CO5, CO6, CO7 are sub-variables for cooperation (**CO**). In regression (4), the square terms of each regressor are additionally included.  
\end{table} 
Table 3: Selection of covariates. Logit models are applied. The dependent variable is the public contract (PUBPRO). mean employee number is located in the interval of 50-249. About 23% of the enterprises received financial support from public sectors, and the most common sponsors were central governments compared to local governments and the EU. For more preliminary analyses, please refer to Figures S1-S4 of the Supplementary Materials for this paper. Figure 2 depicts the numbers and percentages of enterprises answering \"yes\" for each type of eco-innovation and public procurement. Note that 26,488 enterprises responded to innovation with different environmental impacts. The top three adopted innovations were: reduced energy use or carbon dioxide production (ECOENO, 27.4% of the responses), recycled waste, water, or material within the enterprise (ECOREC, 24.1%), and reduced air, water, noise, or soil pollution (ECOPOL, 21.3%).