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121.
The purpose of this article is to investigate how innovation networks can be used to deal with a changing technological environment. This study combines different concepts related to research and development (R&D) collaboration strategies of large firms and applies these concepts to R&D alliance projects undertaken by Nokia Corporation in the period 1985–2002. The research methodology is a combination of in‐depth semistructured interviews and a large‐scale quantitative analysis of alliance agreements. For the empirical analysis a distinction is made between exploration and exploitation in innovation networks in terms of three different measures. As a first measure, the difference between exploration and exploitation strategies by means of the observed capabilities of the partners of the contracting firms is investigated. The second measure is related to partner turnover. The present article argues that in exploration networks partner turnover will be higher than in exploitation networks. As a third measure, the type of alliance contract will be taken; exploration networks will make use of flexible legal organizational structures, whereas exploitation alliances are associated with legal structures that enable long‐term collaboration. The case of Nokia has illustrated the importance of strategic technology networks for strategic repositioning under conditions of change. Nokia followed an exploitation strategy in the development of the first two generations of mobile telephony and an exploration strategy in the development of technologies for the third generation. Such interfirm networks seem to offer flexibility, speed, innovation, and the ability to adjust smoothly to changing market conditions and new strategic opportunities. These two different strategies have led to distinctly different international innovation networks, have helped the company in becoming a world leader in the mobile phone industry, and have enabled it to sustain that position in a radically changed technological environment. This study also illustrates that Nokia effectively uses an open innovation strategy in the development of new products and services and in setting technology standards for current and future use of mobile communication applications. This article presents one of the first longitudinal studies, which describes the use of innovation networks as a means to adapt swiftly to changing market conditions and strategic change. This study contributes to the emerging, but still inconsistent, literature on explorative and exploitative learning by means of strategic technology networks.  相似文献   
122.
The paper investigates the benefits of certification of cooperatives in conflict-affected areas. We study whether and how certification may contribute to attenuate the impact of conflicts on the members of coffee cooperatives in the Eastern DRC. We use an inverse probability weighted difference-in-difference approach to study data collected between December 2017 and October 2019 from four NGO-supported cooperatives. Two of these cooperatives got organic certification in 2018, of which one got an additional Small Producers Symbol (SPP) certification in 2018. Certified cooperatives allow Arabica coffee producers to access markets and buffer against drops in market prices. Results indicate that certified cooperatives were better able to resist the international price drop than non-certified cooperatives and the alternative informal markets. The results also suggest that certified cooperative members increased their sales to the cooperative instead of turning to informal side-selling. We find a decrease in reported food deficits by the members of certified cooperatives and an increase in the importance of coffee in their household's income. We conclude that certification is an effective way forward for smallholder coffee producers and cooperatives in unstable regions.  相似文献   
123.
Identification of peer effects is complicated by the fact that the individuals under study may select their peers. Random assignment to peer groups has proven useful to sidestep such a concern. In the absence of a formal randomization mechanism, it needs to be argued that assignment is “as good as” random. This paper introduces a simple yet powerful test to do so. We provide theoretical results for this test. As a by-product, we equally obtain such results for an approach popularized by Guryan et al. (2009). These results help to explain why this approach suffers from low power, as has been observed elsewhere.  相似文献   
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