Abstract: Under the background of increasing innovation uncertainty, incubators need to establish a wide range of cooperative relationships through networking development to meet the personalized resource needs of the hatching enterprises. The connection mode between network nodes, that is, structural social capital, directly affects the transmission efficiency of network resources. The structural social capital of the incubation network can be defined as the connection mode between the members under the action of the incubation association, which is manifested as network scale, relationship intensity and relationship quality. According to the connection mode of network members, the structural social capital of the incubation network can promote the ability of resource integration, which becomes the key for incubators to obtain sustainable competitive advantage. The resource integration ability of the incubation network is the ability to meet the individualized resource needs of the hatching enterprises under the formal or informal constraints by relying on the public service platforms established by the incubation association. The incubation association changes the connection mode between network members by giving full play to the functions of standardized management, guidance, coordination and training, so that the structural social capital can play a greater role and bring about the dynamic improvement of the ability of resource integration.
Incubation association plays an indispensable role in the optimization of incubation network structure and the improvement of resource integration ability. This research studies how to increase the structural social capital and improve the ability of resource integration by optimizing the structure of the incubation network with the incubation association as the highest level of governance, so as to provide better resource support for the hatching enterprises in order to improve the incubation performance. Based on the perspective of resource integration, this research construct the theoretical model about the relationships between the structural social capital, the resource integration ability, and the incubation performance, and put forward the research hypothesis about the relationships between the three. With 201 incubators in Beijing- Tianjin area as samples, this study used multiple linear regression method for empirical analysis to test the hypothesis. The results indicate that under the incubation association governance, the scale and relationship quality of the incubation network have significantly positive impacts on the incubation performance, which shows that expanding the size of the incubation network and improving the relationship quality can make the members of the network expand the scope of resource acquisition and increase the willingness of resource share, thus giving help to the improvement of incubation performance. The relationship intensity of the incubation network has no significant effect on the incubation performance, which may be due to the fact that the strong relationship is prone to "over- embedding" with the prolongation of time, resulting in resource redundancy and hindering the inflow of new resources. The structural social capital of the incubation network has significant positive influence on the three dimensions of resource integration ability, that is, resource identification ability, resource acquisition ability, and resource utilization ability, which indicates that high quality structural social capital is helpful to resource integration under the action of the incubation association. Resource acquisition and utilization ability have significant positive effects on the incubation performance, which indicates that resource integration effect can meet the resource needs of incubators and hatching enterprises, and quickly transform resource value into incubation performance. The ability of resource identification has no effect on the incubation performance, which may due to resource identification only judges the demand of resources, so it can be seen as a "virtual allocation". The ability of resource integration plays a part intermediary role in the influence of structural social capital on the incubation performance, which indicates that the large-scale and high-quality cooperative relationships between network members can improve the incubation performance to a large extent by optimizing the ability of network resource integration. The results verify the positive influence of the structure social capital on resource integration ability and incubation performance, and the intermediary role of resource integration between structural social capital and incubation performance, which provides a reference for incubation associations and the members to optimize the incubation network structure and improve the incubation performance from the perspective of resource integration.

Key words: incubation network; , resource integration capability, structural social capital, incubation performance