5.1. Analysis of Spatial Metrology Results in the Region
In order to examine the resource allocation efficiency of different innovation subjects in the region, the least squares method (OLS) was used to analyze the impact of the share of science and technology resources input of different innovation subjects on regional innovation output, as shown in
Table 3.
The results in the table show that in the tests for spatial error and spatial lag, the assumption of “no spatial autocorrelation” was rejected, which indicates that a spatial econometric analysis should be performed. Comparing the Lagrange multiplier, it can be seen that the R-LM (lag) level of the SLM model is significantly higher than the R-LM (error) of the SEM model in the impact of technological capital investment on regional innovation output. We select the more significant SLM model for further analysis.
Before performing an SLM model analysis, a decision is needed on whether to use a fixed-effect or a random-effect model. In the choice between fixed effect and random effect models, combined with the LM test, the Hausman test, and Akaike information criterion (AIC) and Schwarz Criterion (SC) indicators, this paper selects the fixed effect model as the analysis model.
Table 4 lists the estimation results of the SLM model under fixed effects.
The results in the table show that the estimated coefficient of the CRDE variable is 0.1750, and it is significant at the level of 1%, which indicates that corporate technology capital expenditures have significantly promoted regional innovation growth, and the ratio of technological capital expenditures to total scientific and technological expenditures has increased by 1 percentage point. The corresponding innovation output increased by 0.1750 percentage points. The estimated coefficients of the XRDE and YRDE variables are not significant, indicating that the technological capital expenditures of universities and R&D institutions have not significantly affected the regional innovation output. On the whole, China’s allocation of science and technology capital is not efficient, and the increase in science and technology capital expenditure of universities and R&D institutions cannot promote the growth of regional innovation output. Each year, China accounts for a certain percentage of funding in universities and R&D institutions, but this has the lowest innovation output. At the same time, it shows that the reason for the low innovation output of Chinese universities and R&D institutions is not the insufficient investment in science and technology capital, but the low level of organization and management of science and technology activities and the lack of effective operating mechanisms. Therefore, increasing the sci-tech capital investment of enterprises can promote the growth of regional innovation output.
Similar results are also shown for the input of scientific and technological personnel. The estimated coefficient of the CRDP variable is 0.3449, and it is significant at the level of 1%. This indicates that the investment of scientific and technological personnel of enterprises has significantly promoted the growth of regional innovation. The proportion was increased by 1 percentage point, and the regional innovation output was correspondingly increased by 0.3449 percentage points. The estimated coefficients of the XRDP and YRDP variables are significantly negative, which indicates that the increase in the number of scientific and technological personnel in universities and research institutions has not led to the growth of regional innovation output, but has inhibited the development of regional innovation output. This is mainly because the scientific research results of universities and research institutions appear in the form of a small number of patents, and the technologies that can generate patents are in the hands of a few teachers. The increase in the number of scientific and technological personnel alone cannot promote the growth of regional innovation output.
The possible reason for the above results is that this article selects the number of invention patent applications as a measure of regional innovation output. For universities and research institutions, the number of invention patent applications may not have been given much attention. Universities and research institutions attach more importance to basic research in the form of scientific papers and scientific works. They do not pay enough attention to invention patents and lack the ability to transform scientific research results into new technologies and products. Moreover, human capital is heterogeneous, and the increase in innovation output mainly depends on the promotion of a small number of core talents. The ineffective accumulation of research staff working hours will not have a positive impact on innovation output, which also reflects the importance of talent strategy for innovation development as well as the current low R&D efficiency and the need to optimize the performance evaluation of R&D personnel [
42]. The above analysis shows that in the current context, to strengthen the status of enterprises as the mainstay of innovation, at the same time, it is necessary to increase the incentive policies of invention patents at universities and research institutions, promote their transformation of scientific research results into new technologies and new products, strengthen cooperation with enterprises, and promote the transfer and transformation of scientific and technological achievements. The government cannot simply invest science and technology resources in universities and research institutions. Instead, it should guide the formation of the industry–university-research cooperation model by adjusting the distribution of science and technology resources among different subjects. The investment in scientific and technological resources should be tilted towards enterprises, and at the same time, the ability of universities and research institutions to transform scientific and technological achievements should be improved.
Observing the estimation results of the three types of R&D entities, it can be seen that the corresponding coefficients of total scientific and technological capital expenditures, namely RDE, are 1.0074, 1.0175, and 1.0149, respectively, and they are all significantly positive. This shows that with the increase of China’s investment in science and technology capital, the overall level of regional innovation output has shown an upward trend. In the SLM model, the ρ values were 0.07674, 0.0810, and 0.0792, and all passed the test at a significance level of 1%. This shows that regional innovation has a significant spatial spillover effect, and that the growth of regional innovation in neighboring regions in geographic space can drive regional innovation and development in the region. The coefficient of WRDE is significantly negative, which indicates that neighboring provinces’ investment in science and technology capital in this province has restrained the increase of regional innovation output to a certain extent. This is mainly due to the increase in technology capital investment in neighboring provinces, which to some extent crowded out local technology capital investment. The promotion effect of local science and technology capital investment on innovation output is very significant. Due to the crowding out of science and technology capital investment in neighboring provinces, the level of innovation output in the province has been reduced.
On the whole, the effect of the allocation of scientific and technological personnel in the region on regional innovation is similar to the allocation of scientific and technological capital, which indicates that the estimation results of the allocation of scientific and technological resources in the region are robust. We consider the impact of three major R&D entities on regional innovation output. The impact of the investment in scientific and technological personnel of enterprises and the investment in scientific and technological capital on regional innovation output is similar, but the impact of scientific and technological personnel investment in higher education on regional innovation output is significantly negative. This shows that blindly increasing the proportion of scientific and technological personnel in institutions of higher education does not necessarily lead to an increase in innovation output. Cooperation with enterprises should be strengthened to transform the basic research results of institutions of higher education into applied research, thereby increasing the level of innovation output in local regions.
From the perspective of the overall impact of the scale of scientific and technological personnel’s input on regional innovation output, the coefficients of scientific and technological personnel input from the three major R&D entities on regional innovation output are 1.1591, 1.1704, and 1.1748, which are significantly larger than the impact coefficient of scientific and technological capital input on regional innovation output, which indicates that the degree of influence of scientific and technological personnel investment on regional innovation output is significantly greater than that of technological capital investment on regional innovation output. From the results of the SLM model, it is known that the values of ρ are 0.2756, 0.2627, and 0.2695, respectively, indicating that there is a significant positive spatial correlation in regional innovation output. This spatial correlation feature relies mainly on the spatial transmission of the impact of errors. The WRDP coefficient is still significantly negative, that is, the input of scientific and technological personnel in neighboring provinces has a significant inhibitory effect on the development of regional innovation output in the province.
Since the setting of the spatial weight matrix may have a significant impact on the model estimation results, in order to test the robustness of the estimation results in
Table 3, the spatial panel model is estimated based on the spatial weight matrix established by Equations (8) and (9).
The results obtained according to Equation (8) are shown in
Table 5.
The results obtained according to Equation (9) are shown in
Table 6.
As apparent from
Table 5 and
Table 6, the estimation results of this kind of spatial weight matrix basically show a consistent phenomenon, which indicates that the estimation results of the fixed-effect space lag model are robust.
5.2. Inter-Regional Spatial Econometric Analysis Results
The flow of science and technology resources between different provinces has realized the reallocation of science and technology resources in space, which has a two-sided effect on changes in regional innovation output. On the one hand, for the sake of profitability, science and technology resources tend to flow into provinces with higher levels of regional innovation output, making the allocation of science and technology resources more efficient in space. In addition, during the flow of scientific and technological capital and personnel, relevant technical knowledge will be carried, which will speed up the dissemination of technical knowledge, thereby promoting the growth of regional innovation output. On the other hand, the flow of scientific and technological resources will cause a shortage of resources out of the provinces and the overcrowded use of infrastructure in the provinces, which will inhibit the development of regional innovation. Whether scientific and technological resource flow is favorable or unfavorable to regional innovation output is the focus of this article.
Table 7 shows the specific impact of the cross-regional flow of technological capital and scientific and technological personnel of enterprises, universities, and research institutions on regional innovation output.
It can be seen from
Table 7 that in the econometric model, the influence coefficient signs of the inter-regional flow variable FRDE of scientific and technological capital and the inter-regional flow variable FRDP of scientific and technological personnel are positive and pass the significance level test. This indicates the inter-regional flow of scientific and technological resources. It has a significant promotion effect on regional innovation output growth. As to technological capital and personnel as innovation factors, their interregional flows have increased the economic scale of each technology in each region. At the same time, the expansion of the flow of science and technology resources across regions has increased the degree of regional economic integration. The increasing effect of scale returns brought about by the spread of knowledge and technology and economic integration will eventually increase the level of innovation output in various regions and nations. Comparing the regression coefficient values of the two types of resource flows, it can be seen that the effect of unit scientific and technological personnel mobility on regional innovation output is higher than the effect of unit technological capital flow between regions.
Therefore, removing the institutional barriers that restrict the flow of scientific and technological personnel and fully realizing the resource reallocation effect brought by the flow of research and development personnel has a very important role in accelerating the improvement of regional innovation output. In addition, the regression results of the allocation structure of each innovation subject in the science and technology resource area are basically consistent with
Table 4 except XRDE. The sign and significance level of the estimated coefficients of each variable are basically consistent, which also proves to a certain extent that the estimation results of this paper are robust. After considering inter-regional mobility, the coefficient of XRDE has changed from insignificant to significant, which indicates that the flow of scientific and technological personnel between colleges and universities in different provinces can significantly promote regional innovation output.
In order to test the robustness of the estimation results in
Table 7, the spatial panel model estimation is performed according to the spatial weight matrix established by Equations (8) and (9). The estimation results of the three spatial weight matrices are basically consistent, which indicates that the estimation results of the fixed-effect space lag model are robust.