全文获取类型
收费全文 | 2201篇 |
免费 | 17篇 |
专业分类
财政金融 | 167篇 |
工业经济 | 792篇 |
计划管理 | 345篇 |
经济学 | 620篇 |
综合类 | 10篇 |
旅游经济 | 46篇 |
贸易经济 | 137篇 |
农业经济 | 53篇 |
经济概况 | 47篇 |
邮电经济 | 1篇 |
出版年
2021年 | 5篇 |
2020年 | 9篇 |
2019年 | 8篇 |
2018年 | 14篇 |
2017年 | 12篇 |
2016年 | 5篇 |
2015年 | 11篇 |
2014年 | 34篇 |
2013年 | 101篇 |
2012年 | 91篇 |
2011年 | 378篇 |
2010年 | 277篇 |
2009年 | 210篇 |
2008年 | 160篇 |
2007年 | 165篇 |
2006年 | 125篇 |
2005年 | 92篇 |
2004年 | 71篇 |
2003年 | 57篇 |
2002年 | 68篇 |
2001年 | 12篇 |
2000年 | 33篇 |
1999年 | 17篇 |
1998年 | 15篇 |
1997年 | 14篇 |
1996年 | 9篇 |
1995年 | 10篇 |
1994年 | 6篇 |
1993年 | 8篇 |
1992年 | 21篇 |
1991年 | 9篇 |
1990年 | 6篇 |
1989年 | 9篇 |
1988年 | 6篇 |
1987年 | 10篇 |
1986年 | 8篇 |
1985年 | 10篇 |
1984年 | 14篇 |
1983年 | 11篇 |
1982年 | 13篇 |
1981年 | 11篇 |
1980年 | 9篇 |
1979年 | 10篇 |
1978年 | 3篇 |
1977年 | 14篇 |
1976年 | 4篇 |
1975年 | 6篇 |
1974年 | 8篇 |
1973年 | 7篇 |
1966年 | 2篇 |
排序方式: 共有2218条查询结果,搜索用时 15 毫秒
101.
F.W. GeelsAuthor Vitae B. VerheesAuthor Vitae 《Technological Forecasting and Social Change》2011,78(6):910-930
This article contributes to the field of innovation studies by addressing the role of cultural legitimacy in technical innovation journeys. The article develops a new perspective that connects insights from discourse theory, interpretive approaches to culture, cultural sociology and social movement theory. In contrast to functionalist and structuralist approaches (which tend to conceptualize culture in a top-down deterministic manner), our cultural-performative perspective emphasizes agency, collective sensemaking and framing struggles. Cultural change is a contested process, in which various groups perform on public stages to influence the attitudes and opinions of relevant audiences who provide financial resources, protection or support relevant for innovation journeys. We demonstrate the usefulness of this perspective with a longitudinal case study of nuclear energy in the Netherlands (1945-1986), which encompasses both the creation of legitimacy in the 1950s and 1960s, and its contestation by an anti-nuclear movement in the 1970s, which halted the innovation journey. 相似文献
102.
Context matters: How existing sectors and competing technologies affect the prospects of the Swiss Bio-SNG innovation system 总被引:1,自引:0,他引:1
Steffen WirthAuthor VitaeJochen MarkardAuthor Vitae 《Technological Forecasting and Social Change》2011,78(4):635-649
Emerging technological fields are affected by developments in their broader context. This article proposes a differentiation of context structures as a crucial step in the analysis of technological innovation systems. A thorough context analysis, so the argument, is essential for understanding the pace and direction of technology development and the prospects of an emerging technological innovation system. Empirical insights are provided for Bio-SNG, a technology in an early stage of development. The article discusses the conditions under which actors from different sectors (forestry, wood industry, and energy supply) may play a role in the emerging field. It is shown that Bio-SNG is likely to become a victim of the recent boom in wood-to-energy technologies that has favored investments in more mature but technologically inferior alternatives. The case provides lessons for policy making as it highlights how effective support schemes might foster a lock-in into technologies that are readily available. 相似文献
103.
Fabio ManziniAuthor Vitae Jorge IslasAuthor VitaePaloma MacíasAuthor Vitae 《Technological Forecasting and Social Change》2011,78(6):931-944
This article focuses on the problem of assessing the environmental sustainability of energy projects. For this purpose an original model, which is based on various indicators that measure the environmental sustainability of energy projects, has been developed. This model, so called index of environmental sustainability of energy projects (IESEP), can be used in scenario comparison, while measuring the effectiveness of the proposed alternatives. Finally, an example of how to use this model is provided by analyzing alternatives to ameliorate the environmental sustainability of a hydroelectric project. In doing so, it is possible to show the usefulness of this model when used as a decision making tool for energy planners. 相似文献
104.
Simone Di ZioAuthor Vitae Antonio Pacinelli Author Vitae 《Technological Forecasting and Social Change》2011,78(9):1565-1578
This paper proposes a modified version of the Delphi method, starting from the assumption that in many situations the convergence of opinions can be considered in a spatial context. The Spatial Delphi we suggest is based, like the classical Delphi, on the judgments of experts, and it is useful in the consultations for decision and/or forecast purposes, provided that they concern matters of spatial location. The basis for the questionnaire is a map, on which each expert provides, as answer(s), one or more opinion-points, i.e., locations that, according to their opinion, are best for a specific purpose. We propose a method for narrowing the area of convergence along a multi-step procedure so that the final result of the consultation is a small portion of the initial territory with respect to the initial area considered. Besides a simulation study, we report also a prototype application with a panel of twelve experts. 相似文献
105.
The New Keynesian Phillips curve implies that the output gap, the deviation of the actual output from its natural level due to nominal rigidities, drives the dynamics of inflation relative to expected inflation and lagged inflation. This paper exploits the empirical success of the New Keynesian Phillips curve in explaining China's inflation dynamics with a new measure of the output gap. We estimate the output gap using the Bayesian multivariate Beveridge–Nelson decomposition method, based on a multivariate dynamic model featuring distinct interactions among inflation, money, and real output in China. The empirical results using quarterly data spanning 1979–2010 show that the new measure of the output gap outperforms the traditional measures in fitting the New Keynesian Phillips curve. This result provides useful insights for inflation dynamics and monetary policy analysis in China. 相似文献
106.
Jiyeon RyuAuthor Vitae Soon Cheon ByeonAuthor Vitae 《Technological Forecasting and Social Change》2011,78(6):1049-1059
Technology has been the driving force of development for knowledge-based economies. As competition in technology innovation among nations becomes more intense, there is a growing need for improved judgment, evaluation and prediction of scientific technology capacity in order to enhance national competitiveness. Until now, a country's technology level has been evaluated on a relative basis by comparing it with that of the country with the world's best technology. However, this kind of static methodology makes the interpretation of results unclear and makes time series analysis difficult. One of the most important limitations of this methodology is that it cannot be used to establish a strategy to improve the technology level. This paper examines the methodological problems of technology level evaluation and develops a dynamic methodology by applying the technology growth curve model. We also analyze the real technology level by using a new model application and review the relevance of this method. Finally, we discuss how to use the results in order to create a dynamic technology strategy. 相似文献
107.
Damien GiurcoAuthor Vitae Brett CohenAuthor VitaeEdward LanghamAuthor Vitae Matthew WarnkenAuthor Vitae 《Technological Forecasting and Social Change》2011,78(5):797-818
Backcasting has been widely used for developing energy futures. This paper explores the potential for using industrial ecology to guide the development of energy futures within a backcasting framework. Building on the backcasting work of Robinson [1], a seven step method is presented to embed industrial ecology principles within the development and assessment of future scenarios and transition paths toward them. The approach is applied to the case of backcasting regional energy futures in the Latrobe Valley, near Melbourne, Australia. This region has substantial brown coal deposits which are currently mined and used in coal-fired power stations to generate electricity. Bounded by a sustainability vision for the region in a carbon-constrained world, regional industrial ecologies in 2050 were backcast around three themes: bio-industries and renewables (no coal usage); electricity from coal with carbon capture and storage (low to high coal usage); and coal to products such as hydrogen, ammonia, diesel, methanol, plastics and char (demonstrating medium to high overall coal use relative to current levels). Potential environmental, technological, socio-political and economic impacts of each scenario across various life cycle stages were characterised. Results offer a platform for regional policy development to underpin deliberation on a preferred future by the community, industry and other stakeholders. Industrial ecology principles were found to be useful in backcasting for creatively articulating alternative futures featuring industrial symbiosis. However, enabling the approach to guide implementation of sustainable transition pathways requires further development and would benefit from integration within the Strategic Sustainable Development framework of Robèrt et al. [2]. 相似文献
108.
Jeong Ho KwakAuthor Vitae 《Technological Forecasting and Social Change》2011,78(4):713-728
The VoIP (Voice over Internet Protocol) market in Korea is showing rapid growth since domestic carriers initiated the service in 2006. These carriers are now seeking new revenue sources from various convergence services and are increasing investment into VoIP. In particular, local exchange carriers (LECs), formerly reluctant to invest in technologies that would cannibalize their local telephone revenue, have started to invest in VoIP, in recognition of the current convergence of media and the telecommunications industry, as well as in the face of intensifying competition. In this study, we determined that VoIP call rates and landline telephony call rates were the most important factors affecting VoIP call demand, in addition to network externality. We also verified that landline telephony is no longer a supplement to VoIP, but rather, a substitute that has considerable influence on VoIP call demand. Empirical evidence is expected to be considered in policy decision making on current issues in the IT industry, such as access prices or competitiveness assessment. The current empirical analysis on the Korean VoIP industry and the adherence to lessons learned from policy enforcement should provide valuable information to countries seeking to develop their own VoIP industries, as well as to businesses developing new strategies based on the VoIP market. 相似文献
109.
Harold A. LinstoneAuthor Vitae Murray TuroffAuthor Vitae 《Technological Forecasting and Social Change》2011,78(9):1712-1719
In response to a request by the guest editors, we have set down our thoughts regarding the evolution of Delphi, beginning with our immersion in the subject in the late 1960s and concluding with some rumination about its future. Our focus is on the changing roles of Delphi. Most importantly, with the profound impact of the internet on organizational and community planning systems, it will foster a new age of participation through communication, coordination, and collaboration. 相似文献
110.
Berna BeyhanAuthor Vitae Dilek CetindamarAuthor Vitae 《Technological Forecasting and Social Change》2011,78(1):103-115
This paper aims to identify the intellectual bases of the technology management (TM) literature generated in developing countries using citation and co-citation analyses and answer the question of whether the intellectual bases of the TM literature created by authors in developing countries diverge from those of the global TM literature. Based on a comprehensive bibliometric analysis of ten technology-innovation management (TIM) specialty journals through the period of 1998-2007, this study produces three important findings. First, the TM literature generated in developing countries is dominated by the knowledge and theories created in developed countries. Second, among these knowledge sources some authors from developing countries and focusing on the specialties of developing countries, such as Kim and Lall, come into prominence; however these authors are not even mentioned in the previous bibliometric studies covering overall TM research. Finally the researchers in developing countries tackle with the issues or topics specific to their own context through combining three major bulks of literature. These are (i) resource-based view (RBV)/core competencies and organizational learning related research; (ii) literature dealing with the evolutionary theorizing on economic change and growth and (iii) literature related to technological capabilities, technology transfer and industrialization in developing countries. 相似文献