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21.
University Life Science Programs and Agricultural Biotechnology 总被引:1,自引:0,他引:1
We examine sources of productivity in bioscience research and graduate training in U.S. universities. For this purpose, we first identify the scientific publications cited on agricultural biotechnology patents, and then trace the citations back to the universities producing the cited research. Insight is thus gained into the university investments that demonstrably influence useful technology. Life-science budget allocations substantially affect both graduate education and technology-relevant science. Graduate training shows decreasing returns to budget scale, while productive research shows decreasing returns in the short run but increasing returns in the long run. Training is a weak substitute for research, while research is a moderate complement to training. 相似文献
22.
Matin Qaim 《World development》2003,31(12):2115-2127
The performance of Bt cotton in India is analyzed on the basis of field trial data from 2001. The amounts of pesticides applied during the trials were reduced to one-third of what was used in conventional cotton, while––under severe pest pressure––yield gains were 80%. Productivity effects are modeled econometrically with a damage-control specification. The first approval for the commercial cultivation of Bt hybrids was given in 2002. By 2005, the technology is expected to cover one-quarter of total Indian cotton area. Medium-term projections show sizeable welfare gains for the overall economy, with farmers being the main beneficiaries. 相似文献
23.
We explore transaction cost economics (TCE) and real option (RO) rationales for alliance governance and find the predictive power of each depends upon the type of uncertainty confronted. Our review of alliance activity from 1995 through 2000 for 642 alliances confirms that governance is influenced directly by partner, task, and technological uncertainty and by interactions among asset co‐specialization, partner uncertainty, and task uncertainty. Consistent with TCE, co‐specialized assets increased the likelihood of hierarchical governance. Partner and task uncertainty increased this effect. Consistent with RO, we find technological uncertainty decreased the likelihood of hierarchical governance. Copyright © 2005 John Wiley & Sons, Ltd. 相似文献
24.
Jinyang Cai Weiqiong Chen Jikun Huang Ruifa Hu Carl E. Pray 《Journal of Agricultural Economics》2020,71(2):287-304
China’s research and development (R&D) policy has changed considerably over recent decades, and great changes occurred in 2006 when the main programme objective of China’s R&D changed from the 863 Programme and 973 Programme to the National Science and Technology Major Project. One topic that has drawn extensive attention is whether the investment reform improved R&D productivity in China. Using a unique panel dataset from 160 universities, this paper examines the effect of the investment reform on productivity improvement in China’s agricultural biotechnology sector. We use a panel count data model with a dynamic feedback mechanism to model the knowledge production process. Strong evidence indicates that the investment reform greatly contributes to knowledge output production in China’s agricultural biotechnology sector. We also find that the input quality is more important than the absolute quantity; human research capacity exhibits the greatest contribution to the output of patents; past knowledge accumulation helps produce more patents; and entry barriers to patent production exist in China’s agricultural biotechnology sector. Moreover, the patent explosion in China may have been largely caused by improvements in the human capital input quality. 相似文献
25.
The study of public perceptions is considered to be important for making sound policy decisions, since the public decides which products will enter and sustain in the market. Stability of public perceptions is important for policy-makers; only if public attitudes and perceptions remain constant, policy-makers will be able to take them into account. The aim of the present study was to examine the stability of participants’ risk and benefit perceptions of gene technology over a period of two years. In spring, 2008 and in spring, 2010, the same sample of participants filled out an identical questionnaire. Results of structural equation modelling show that risk and benefit perceptions of gene technology applications are moderately stable (r = .5–.7). Furthermore, results show that people distinguish between medical, plant and food applications and applications involving animals when evaluating the risk of gene technology. When evaluating the benefits, participants also take consumer-related benefits into account, such as enhancement of functional properties. Results of the present study suggest that risk research should regularly examine people’s risk perceptions in order to gain a clearer picture of the dynamics of people’s perception and preferences not only of novel technologies, but also of entrenched technologies. 相似文献
26.
The knowledge‐based view of the firm is a recent approach to understanding the relationship between firm capabilities and firm performance. Specifically, this approach suggests that knowledge generation, accumulation and application may be the source of superior performance. Other research has conceptualized organizational knowledge in terms of stocks of accumulated knowledge in the firm and flows of knowledge into the firm. This paper tests the relationship between stocks and flows of organizational knowledge and firm performance in the biotechnology industry. We suggest that a firm’s geographic location, alliances with other institutions and organizations and R&D expenditures are representative of knowledge flows, while products in the pipeline, firm citations and patents are indicative of knowledge stocks. Through factor analysis, we develop an aggregated measure of location from several variables. A regression model suggests that location is a significant predictor of firm performance as are products in the pipeline and firm citations. A major contribution of this investigation is the operationalization of geographic location and its statistically significant link to firm performance. Copyright © 1999 John Wiley & Sons, Ltd. 相似文献
27.
刘贺青 《全球科技经济瞭望》2010,25(4):11-17
为了减少对进口石油的依赖、为了实现减排承诺、为了发挥农业资源优势、增加农民收入,泰国皇室、文官和军人政府都致力于发展乙醇汽油和生物柴油,并倡导把泰国发展成东盟的乙醇贸易中心,把东盟发展成世界生物燃料贸易中心。本文梳理了泰国生物燃料发展政策并指出其经验和存在的问题,为今后制定合理的生物燃料政策提供了思路。 相似文献
28.
王志强 《全球科技经济瞭望》2013,(2):1-9
在未来的生物经济时代,生物炼制是从生物质原材料到最终产品实现的生产链条上关键的一环.为进一步促进生物炼制技术成熟化和市场化,2012?年,德国联邦政府发布了《生物炼制路线图》,该路线图明确界定了生物炼制技术发展需求、政策背景、内涵体系和技术领域,分析了德国生物炼制技术发展现状、优势劣势和风险挑战,并规划了德国生物炼制技术未来行动领域. 相似文献
29.
The purpose of this article is to measure the efficiency of pharmaceutical firms and identify their determinants using Korean and American samples from 1992 to 2004. We document some stylized facts in the patterns and sources of efficiency change in Korean and American pharmaceutical firms. The evidence shows that ownership structure can substantially influence the efficiency of pharmaceutical firms. Especially, institutional ownership rate affects corporate efficiencies negatively, corroborating the myopic institutional investor hypothesis. The hypothesis is supported by both Korean and American samples. However, we find evidence that foreign ownership in Korea promotes efficiency of pharmaceutical firms. It is shown that R&D intensity is positively related to contemporaneous largest ownership rate and prior foreign ownership rate in Korean pharmaceutical firms. In contrast, little evidence is found on the relationship between ownership structure and R&D intensity in the American pharmaceutical industry. These empirical results are robust even after we check the causal links among efficiency, R&D and ownership. 相似文献
30.
Virginie Jacquier-Roux Bernard Bourgeois 《Technology Analysis & Strategic Management》2013,25(4):399-417
Energy industry companies have succeeded in maintaining and even increasing their production of knowledge during the last 15 years (1985/1998) within a financial context of reducing their in-house R&D expenditures. To understand these apparently paradoxical changes, elements of analysis are sought within an evolutionary framework, and especially referring to the related developments to network-firms, user-supplier relationships, and interactive nature of innovation processes. Empirical data are provided on patents granted to a sample of the top 15 world largest companies, both operators and equipment suppliers, and for the oil production and power generation industries. Interpretation of the results suggests that two dynamics ought to be distinguished. On the one side, dynamics of the networks of technological creation are characterized by a movement upstream of the head of the network towards suppliers. On the other side networks of creation of competitive advantages and bargaining power continue to be based on the operators and their strategies of adaptation to the constraints and opportunities of their institutional, financial and competitive environment. 相似文献