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11.
We study a multinational corporation's (MNC) failure in implementing a firm‐wide information technology system (ITS) project. To counter heightened competitive pressures, the MNC sought to improve its supply chain responsiveness by implementing the ITS project. However, since the headquarters (HQ) personnel lacked nuanced understanding of the micro issues in the subsidiaries, their design efforts turned out to be inadequate. Organizational practices that restrict member behavior to recipes from past knowledge served to amplify the problem—by disfavoring cooperation. Our study suggests a need to rethink the notion of the HQ as the design place. Further, there is a case for subsidiary personnel being afforded a greater say in design of changes to their work processes, given their higher exposure to process variety. This may offset the HQ‐subsidiary power imbalance noted in prior literature. © 2015 Wiley Periodicals, Inc.  相似文献   
12.
文章从理论和实践两个方面证明和阐述了资源循环利用是矿区发展循环经济的有效途径,进而从矿区生态背景调查与分析入手,提出纵向主导产业链设计和横向耦合共生产业链构建的方法,最终形成矿区资源循环利用产业网状体系,从而达到既提高经济效益又从根本上改善生态环境的"双赢"目的。  相似文献   
13.
A comparison of the life cycle plots for the production and patent activity for several materials indicates that the two life cycle plots may be correlated to such an extent that they may be superimposed to a large degree, for all growth-stages, simply by an origin shift. Over fifty metallic and non-metallic materials have been studied. This origin shift may be indicative of the presence of Stage III (high-growth stage). The drive force ratio for innovation-enhanced supply also scales with the origin shift. When the drive force ratio is equal to one, the materials in their Stage III life, are balanced in the amount of resources which impact production and patents. One of the key findings is that materials may be grouped into two groups depending on their drive ratio and the lag ratio in the data sets of the production and patent activity. In the first group, innovation is unable to influence the production activity and consequently materials tend to slide towards Stage IV (i.e. the stage of low average growth with high oscillation) regardless of the fact that patents may impact unit production significantly in this group. The existence of a Stage V (final death stage) is also discussed. It appears that materials that have been recognized to be highly toxic are particularly prone to a Stage V type behavior.  相似文献   
14.
Volatility timing in mutual funds: evidence from daily returns   总被引:5,自引:0,他引:5  
Busse  JA 《Review of Financial Studies》1999,12(5):1009-1041
I use daily mutual fund returns to shed new light on the questionof whether or not mutual fund managers are successful markettimers. Previous studies find that funds are unable to timethe market return. I study the funds' ability to time marketvolatility. I show that volatility timing is an important factorin the returns of mutual funds and has led to higher risk-adjustedreturns. The returns of surviving funds are especially sensitiveto market volatility; those of nonsurvivors are not.  相似文献   
15.
16.
Life-cycle studies provide a comprehensive insight into comparative innovation behavior and innovation constants. In this article a comparison of the life-cycle plots for the production and patent activity is made for US energy production categories. As has been shown previously for material production [TFSC, vol.78, 2011], the two activities may be correlated to such an extent that they may be superimposed to a large degree, for all growth stage except stage IV, simply by an origin-shift. Over ten energy production methods have been studied in this manner for the first time. An origin-shift ratio, OR, (positive or negative lag) describes the amount required to shift the two activity curves in order to superimpose them. The relative drive-force ratio, DR (defined as the ratio of the production and patent growth constants) is noted to scale with the origin-shift. The value of this drive-force ratio determines the amount of production that is influenced by patents. The slope of curve of the drive-force ratio plotted against the origin-shift ratio is noted to be constant across all energy categories in the high growth Stage III. The authors find for the first time that even early stage production displays an origin-shift. Energy materials (i.e., those materials that dominate a particular type of energy production) are also studied in the material category alone, where the total usage of the material is considered. The concept of Green materials is discussed in this context. The life-cycle approach collapses the energy categories/sources and related materials into two groups. The authors discuss these groups in the Schumpeterian framework of constructive and destructive innovation. Group 1, containing coal, natural gas, wind, renewable, fossil fuel, solar and total energies, is composed of energy categories/sources whose patent activity could be inferred as driving their production. On the other hand, energy production from biomass, biofuel, geothermal and nuclear energies is identified in Group 2, in which the patent activity is driven by production (high innovation group). An (OR) of slightly less than one and a (DR) less than one, lead to a placement where with time, a constructive to destructive innovation transition is encountered A very low (OR) and a low (DR) on the other hand leads to a transition from Stage III growth to a no-growth (Stage IV) with time. Innovation enhanced resources and production are also discussed.  相似文献   
17.
Small and medium enterprises (SMEs) play a significant role in the growth of the economy. Many SMEs have set up activities beyond their home markets, and their role is more important in contributing to future growth. They are confronted with international competition and forced to compete in international markets. In this study, authors have categorized obstacles to firm internalization as internal and external barriers. The three dimensions of external barriers include governmental and economic political/legal barriers, procedural, and currency barriers, and task and socio-cultural barriers. The internal barriers considered for the purpose of the study were informational barrier, managerial barriers, financial barriers, and marketing barriers. Authors have used adapted scale from previous researches in these domains. Database accumulated the SMEs that were involved in manufacturing activities in the state of Rajasthan, India. The measurement model is a confirmatory factor analysis. The measures used within this study were within the acceptable levels supporting the reliability of the constructs. The analysis of the data revealed that there was moderate correlation between the external and internal factors. Within the external factors, procedural and currency barriers showed the highest obstacle for SMEs in their pursuit for internationalization followed by task and socio-cultural factors. Results specified that the entrepreneurs were not able to handle and manage foreign exchange fluctuations due to their lack of knowledge in this field.  相似文献   
18.
We describe here a generic approach to innovation dynamics based on an integrated framework for inventions and innovations applied via a platform equation and model across the industrial technology life cycle. We test the model for metals and other materials, and demonstrate that this model correctly describes the production activity for several materials and energy conversion technologies.Innovation activity patterns are shown for several oxides, metals, oil and wind energy and its derivatives. The metals Cu, Al, W, Mo and Pb are particularly studied for the amount produced over time. The total activity for the metals encompasses both the invention and innovation stage for a particular metal. Four major stages and two sub stages are identified for the discovery (invention) and subsequent growth regimes (i.e. the innovation stage). The pattern equation appears to clearly capture all these stages for the metals studied — work is ongoing for similar analyses of energy and other materials. Although the metals studied existed over differing periods (e.g. copper greater than 200 years whereas aluminum, just over 100 years), one single pattern equation appears to capture all the major trends. The use of the model is also shown for productivity analysis, especially for the condition of radical innovation (very rapid growth). For sustained radical innovation, namely, when the output of the produced material per unit time, keeps on increasing with time, there are various factors which may influence growth. For the conditions where thermal activation and plant size are the dominant variables, their impact on the growth may be examined in the context of the pattern equation. A preliminary analysis of oxide production activity also appears to follow this same innovation model.The results suggest a fertile field of future research extending the initial platform equation model to include R&D, Patents, and Performance, as well as Sales, as innovation activity. Further, the model shows promise in combination with the ARI methodology model for analysis and assessment of existing and future industrial technology life cycles involving material, process, product, software and service innovations.  相似文献   
19.
首先,利用模糊聚类的最大树算法对城市进行分类,将快递企业的服务区域分成若干个子区域.其次,以运输成本最小为目标,利用重心法确定航空中转站所在的城市.最后,为提高该方法的适用性,进一步设计基于模糊聚类最大树算法的区域划分程序和基于重心法的中转站选址程序.  相似文献   
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