全文获取类型
收费全文 | 39503篇 |
免费 | 482篇 |
专业分类
财政金融 | 6656篇 |
工业经济 | 2358篇 |
计划管理 | 6454篇 |
经济学 | 9199篇 |
综合类 | 682篇 |
运输经济 | 179篇 |
旅游经济 | 348篇 |
贸易经济 | 8131篇 |
农业经济 | 1144篇 |
经济概况 | 4150篇 |
信息产业经济 | 47篇 |
邮电经济 | 637篇 |
出版年
2023年 | 108篇 |
2021年 | 149篇 |
2020年 | 289篇 |
2019年 | 458篇 |
2018年 | 2773篇 |
2017年 | 2558篇 |
2016年 | 1754篇 |
2015年 | 435篇 |
2014年 | 662篇 |
2013年 | 2491篇 |
2012年 | 1217篇 |
2011年 | 2718篇 |
2010年 | 2456篇 |
2009年 | 2236篇 |
2008年 | 2182篇 |
2007年 | 2439篇 |
2006年 | 674篇 |
2005年 | 904篇 |
2004年 | 930篇 |
2003年 | 1057篇 |
2002年 | 680篇 |
2001年 | 568篇 |
2000年 | 507篇 |
1999年 | 421篇 |
1998年 | 491篇 |
1997年 | 426篇 |
1996年 | 437篇 |
1995年 | 362篇 |
1994年 | 374篇 |
1993年 | 355篇 |
1992年 | 369篇 |
1991年 | 383篇 |
1990年 | 350篇 |
1989年 | 260篇 |
1988年 | 267篇 |
1987年 | 270篇 |
1986年 | 267篇 |
1985年 | 365篇 |
1984年 | 357篇 |
1983年 | 337篇 |
1982年 | 290篇 |
1981年 | 288篇 |
1980年 | 289篇 |
1979年 | 278篇 |
1978年 | 237篇 |
1977年 | 186篇 |
1976年 | 188篇 |
1975年 | 166篇 |
1974年 | 153篇 |
1973年 | 150篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
2.
I. E. Ilina E. N. Zharova S. P. Burlankov 《Studies on Russian Economic Development》2018,29(2):207-213
This paper presents an approach to assessing the efficacy of public spending on research and development in state programs. At present, there is a need to develop a unified approach to the analysis and evaluation of the efficacy of such spending from the perspective of participants in state programs (federal executive bodies). The proposed approach does not allow evaluating the efficacy of public spending on the development of research areas assigned to the authors. 相似文献
3.
Growing urbanisation in South Africa is reflected in burgeoning Working class and informal township settlements on the fringes of its major towns and cities. Paired with this is an increasing reliance on cash as the primary means of economic transaction, which has in turn stimulated the growth of micro-enterprise business activities within the township context. This article discusses the findings of an eight-township small-area census which occurred between 2010 and 2013 in Cape Town, Johannesburg, Ekurhuleni and Durban townships representing 250 000 residents. The researchers were able to establish the scope and scale of informal food and drink retailing in these localities. Of the 10 049 micro-enterprises located in the study, some 3966 (or 39% of the total) trade in food. These include enterprises in primary production, fresh produce retailing, grocery retailing from house and spaza shops, and informal foodservice enterprises. Food is the basis for much township informal business and plays an important role in making food increasingly affordable and locally accessible, and in creating cash employment. The article builds on the knowledge base of the township informal economy role in bolstering food security needs for the marginalised. 相似文献
4.
5.
Stefan Kurpjuweit Christoph G. Schmidt Maximilian Klckner Stephan M. Wagner 《Journal of Business Logistics》2021,42(1):46-70
Additive manufacturing (AM) appears to be a particularly attractive use case for blockchain. This research combines inductive in‐depth interviews with the Delphi method to explore what potentials blockchain technology in AM creates, which adoption barriers firms need to overcome, and how supply chains will be affected by the integration of these two potentially disruptive technologies. The results suggest opportunities that are related to intellectual property (IP) rights management, the monitoring of printed parts throughout their lifecycle, process improvements, and data security. The most important barriers for blockchain adoption in AM are an absence of blockchain‐skilled specialists on the labor market, missing governance mechanisms, and a lack of firm‐internal technical expertise. By addressing important limitations of AM, blockchain is expected to improve the competitiveness of AM in parts’ production, catalyzing the trend toward more decentralized manufacturing resulting in more agile, resilient, and flexible supply chains and reduced logistics costs. Beyond that, blockchain‐based AM platforms are expected to enhance supply chain visibility, drive supply chain digitalization, support supply chain finance, and contribute to the emergence of shared factory systems. 相似文献
6.
H.J. Christian van der Krift Josette M.P. Gevers Arjan J. van Weele 《Journal of Purchasing & Supply Management》2021,27(3):100698
Despite the importance of good collaborative relationships in interorganisational projects, clients and contractors often develop adversarial relationships due to perceptual distance about key project issues. In this case study research, we investigated how perceptual distance emerges and changes over time, and how the collaborative relationship between client and contractor develops alongside these dynamics. In this exploration, we built upon agency theory and stewardship theory as complementary perspectives for understanding client-contractor collaborative relationships. We gathered quantitative and qualitative data in two projects, conducting three assessments in about one year. We found that perceptual distance increased and decreased over time, and that a reduction was typically associated with the collaborative relationship being characterized by stewardship rather than agency. These findings suggest that a regular assessment and evaluation of partners’ perceptions of critical project issues is warranted to timely detect and counteract perceptual distance. Moreover, partners would best adopt a stewardship orientation to reduce perceptual distance, although this may take considerable effort given the distributive nature of many pre-project negotiations. 相似文献
7.
Axel Berger Tobias Schlager David E. Sprott Andreas Herrmann 《Journal of the Academy of Marketing Science》2018,46(4):652-673
Firms increasingly use games to interact with their customers. Yet, surprisingly little is known about whether, when, and how such “gamified” interactions engage consumers with a firm’s brand, thereby facilitating self–brand connections. Building on flow theory, we show that gamified interactions that are highly interactive and optimally challenging facilitate self–brand connections, because such games lead to emotional and cognitive brand engagement. A field study and three experiments across various product domains and game designs support our theory. We also identify conditions under which consumers do not become engaged with a brand, namely when firms restrict their decisional control either to voluntarily participate in the game (i.e., compulsory play) or to spend as much time as desired playing the game (i.e., time pressure). Our findings advance existing knowledge about the use of games in marketing and provide important implications for how marketers can harness their potential to build self–brand connections. 相似文献
8.
Journal of Business Ethics - Blockchain is an open digital ledger technology that has the capability of significantly altering the way that people operations (i.e. human resource management)... 相似文献
9.
10.