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51.
This paper implements Freeman’s suggestion that insights into the effect of U.S. unionism on R&D investment may be obtained
by correlating U.S. union density by industry with R&D investment by industry in another country, here Germany. 相似文献
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Social Indicators Research - 相似文献
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Mechthild Hagen Ludowika Huber Christiane Hemmer-Schanze Joachim Kahlert 《International Journal of Listening》2013,27(1):79-90
The article gives us an exemplary insight into research in Germany that deals directly or indirectly with aspects of listening. The reader is given a clear picture of the Munich university project GanzOhrSein aimed at promoting listening skills in schools. The educational value of listening is initially derived from research findings and the model course of action to promote listening skills is explained via the cultural potential. The findings of the accompanying research clearly show that the diverse ways of promoting listening ability that have been developed and tested, do broaden the hearing and listening habits of the children and teachers participating in the project, and do facilitate listening conditions in lessons. The article will also demonstrate what researchers and everyday school practice can gain from this project, and how the institutionalisation of the promotion of listening can benefit. 相似文献
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How does a firm’s IT architecture affect its potential to outsource business processes? As Information Technology (IT) has become many firms’ essential operational infrastructure or “backbone”, we are interested in scrutinizing to what extent the kind of IT architecture affects a firm’s boundaries or the plasticity of its boundaries. Focusing on the particular concept of service-oriented architectures (SOA), we concretely ask: How does SOA affect business process outsourcing potentials? Since SOA is widely expected to modularize the IT implementation of business processes, it should increase business process outsourcing (BPO) in terms of buying in the provision of single business functionalities. We develop and empirically evaluate a theoretical model that conceptualizes the relationship between SOA and BPO. Questionnaire data from 115 firms give first evidence that SOA facilitates BPO. By increasing IT modularity, SOA supports BPO by increasing sourcing flexibility and, in particular, operational benefits, while at the same time lowering financial risks and strategic risks, such as lock-in. Overall, however, firms see SOA-based BPO mainly in an operational context with low hidden costs and little strategic benefits. 相似文献
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Weak identification is a well-known issue in the context of linear structural models. However, for probit models with endogenous explanatory variables, this problem has been little explored. In this paper, we study by simulating the behavior of the usual z-test and the LR test in the presence of weak identification. We find that the usual asymptotic z-test exhibits large level distortions (over-rejections under the null hypothesis). The magnitude of the level distortions depends heavily on the parameter value tested. In contrast, asymptotic LR tests do not over-reject and appear to be robust to weak identification. 相似文献