Abstract
Research collaboration has long been suggested as an effective way to obtain innovative outcomes. Nevertheless, relatively little is known about whether and how different research collaboration strategies inspire or inhibit firms in the exploration of new knowledge. Drawing upon the research collaboration literature and social network theory, this study examines the effects of two specific collaboration strategies (i.e., collaborating widely and collaborating deeply) on new knowledge exploration by recognizing the moderating roles of the local and global cohesion of knowledge networks. We test our hypotheses by using a manually collected sample of 730 Chinese vehicle or parts manufacturers during the period between 1985 and 2011. The empirical results suggest the positive effects of research collaboration breadth and collaboration depth on new knowledge exploration and that the global cohesion of intra-organizational knowledge networks magnifies the effect of collaboration breadth, while local cohesion negatively moderates the effect of collaboration depth on new knowledge exploration. These findings jointly indicate that a research collaboration strategy in combination with the structure of a knowledge base is crucial for obtaining novel knowledge.
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Notes
For instance, as Powell, Koput and Smith-Doerr (1996) noted, “obtaining access to new markets and technologies, pooling complementary skills, risk sharing, speeding products to market” are four of the main benefits of firm involvement in collaboration.
As is shown in the Methodology section, we measured the independent variables in the former period (from 1985 through 2006), and we measured the dependent variable in the latter period (from 2007 through 2011).
The three inter-temporal patterns are persistent collaboration, recently formed collaboration, and recently discontinued collaboration.
Some recent studies focused on the sector level knowledge networks (e.g. Guan and Liu 2016).
The ten industries are the automotive, steel, information and communication, logistics, textile, equipment manufacturing, ferrous metal, light industry, petrochemical, and shipbuilding industries. More details can be obtained from the following website: http://finance.sina.com.cn/focus/10chanye/.
For details about the PISP, please refer to the following website: http://www.chinaip.com.cn/.
IPC is a hierarchical patent classification system, within which classification terms consist of symbols such as A01B 1/00. The first letter is the “section symbol”. The following two-digit numbers are the “class symbol”. The four-digit letter makes up the “subclass”. The subclass is then followed by a one-to-three-digit “group” number, an oblique stroke and a number of at least two digits that represent a “main group” or “subgroup”. More details can be obtained from the following website: http://www.wipo.int/classifications/ipc/en/.
There is a possibility that a firm may have one IPC class at the four-digit level but more IPC classes at the five- or six-digit level.
We collected the patent data from PISP during April through June in 2015.
For a specific cooperative patent, the collaboration depth between the focal firm and its partner i equals to 1/(n-1) when they jointly applied for a patent with the other n-2 actors.
The detailed calculation of weighted density can be obtained in the “Appendix”.
We calculated the local cohesion with the consideration of tie strength as well by using the weighted overall clustering coefficient of a firm’s knowledge network.
For details about BYD, please refer to the following website: http://www.byd.com/indexglobal.html.
For details about Chery, please refer to the following website: http://www.cheryinternational.com/.
In our study, a total of 53 firms whose collaboration depth is greater than 1 accounted for 7.3% of the whole sample.
We thank one reviewer who points this out.
We calculated these statistics using data collected from various issues of Statistic Yearbook of Automobile Industry at http://tongji.cnki.net/kns55/Dig/dig.aspx.
We thank one of the reviewers who pointed this out.
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Acknowledgements
We thank Yapu Zhao for his helpful comments and discussions. We are especially grateful to the Editor Barry Bozeman and three anonymous reviewers for their insightful comments and encouragement. Seminar participants of College of Business Administration at Hunan University provided helpful suggestions. Earlier version of this paper is presented at the International Conference on Innovation Studies (ICIS) at Tsinghua University in 2017. This research is sponsored by grants from the National Natural Science Foundation of China (Grant Nos: 71502056, 71673082, 71233002). All errors are ours.
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Appendix
Appendix
To better understand the measurement of weighted density, an example is given to illustrate how weighted density is calculated. If a firm’s knowledge network is as follows (the matrix in Table 3), the weighted density (WD) of the firm’s knowledge network then can be calculated as:
By constrast, the pure density neglects the frequency of this co-occurrence and thus the pure density (PD) of the firm’s knowledge network can be calculated as:
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Xu, L., Li, J. & Zhou, X. Exploring new knowledge through research collaboration: the moderation of the global and local cohesion of knowledge networks. J Technol Transf 44, 822–849 (2019). https://doi.org/10.1007/s10961-017-9614-8
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DOI: https://doi.org/10.1007/s10961-017-9614-8