全文获取类型
收费全文 | 137694篇 |
免费 | 3209篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 25905篇 |
工业经济 | 11564篇 |
计划管理 | 21889篇 |
经济学 | 29501篇 |
综合类 | 1471篇 |
运输经济 | 976篇 |
旅游经济 | 2500篇 |
贸易经济 | 23611篇 |
农业经济 | 6125篇 |
经济概况 | 17068篇 |
信息产业经济 | 7篇 |
邮电经济 | 287篇 |
出版年
2021年 | 839篇 |
2020年 | 1621篇 |
2019年 | 2393篇 |
2018年 | 2369篇 |
2017年 | 2559篇 |
2016年 | 2712篇 |
2015年 | 2100篇 |
2014年 | 3414篇 |
2013年 | 15314篇 |
2012年 | 4205篇 |
2011年 | 4194篇 |
2010年 | 3736篇 |
2009年 | 4377篇 |
2008年 | 3914篇 |
2007年 | 3276篇 |
2006年 | 3573篇 |
2005年 | 3583篇 |
2004年 | 3130篇 |
2003年 | 2917篇 |
2002年 | 2870篇 |
2001年 | 2651篇 |
2000年 | 2584篇 |
1999年 | 2502篇 |
1998年 | 2305篇 |
1997年 | 2375篇 |
1996年 | 2223篇 |
1995年 | 2019篇 |
1994年 | 2034篇 |
1993年 | 2019篇 |
1992年 | 2074篇 |
1991年 | 1981篇 |
1990年 | 1860篇 |
1989年 | 1706篇 |
1988年 | 1651篇 |
1987年 | 1640篇 |
1986年 | 1726篇 |
1985年 | 2483篇 |
1984年 | 2371篇 |
1983年 | 2165篇 |
1982年 | 2009篇 |
1981年 | 1962篇 |
1980年 | 1924篇 |
1979年 | 1845篇 |
1978年 | 1652篇 |
1977年 | 1636篇 |
1976年 | 1390篇 |
1975年 | 1282篇 |
1974年 | 1192篇 |
1973年 | 1191篇 |
1972年 | 904篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Pavlo R. Blavatskyy 《Economics of Transition》2021,29(2):361-365
We collected 469 frontal face images of Ukrainian cabinet ministers who were in office in 2000–2020. For each image, the minister's body mass index was estimated using a computer vision algorithm. The time series of median estimated body mass index of cabinet ministers co-moves over time with two existing measures of corruption – World Bank worldwide governance indicator Control of Corruption, and the discrepancy between the quantity of luxury wristwatches exported from Switzerland to Ukraine (reported by Swiss statistics) and the corresponding quantity imported by Ukraine from Switzerland (reported by Ukrainian statistics). 相似文献
2.
3.
Prior research has shown that the well-being of employees engaged in intensive work can vary with the discretion their jobs afford regarding how and when to carry out the work. This article explores a different avenue. It argues that well-being also varies with employees’ individual motives for working intensively. The article introduces self-determination theory to the domain of work intensity and focuses on two hypotheses. The first is whether intensive work driven by explicit or implicit incentives is more positively associated with an employee's job satisfaction than intensive work driven by job demands. The second is whether intensive work driven by intrinsic motives is more positively associated with job satisfaction than that driven by explicit or implicit incentives. In both these cases, the article also examines whether equivalent effects exist on (reduced) quit intentions. Original data from a major Greek grocery chain provide corroborative evidence that is robust to a rich set of covariates, including increasingly demanding adjustments for job discretion. The findings contribute to a more complete understanding of why differences in well-being exist among employees performing intensive work, with implications for workers and employers. 相似文献
4.
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
5.
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
6.
Alan P. Ker 《Revue canadienne d'agroeconomie》2021,69(1):17-17
President Biden was sworn in on January 20, 2021 after a 4‐year term by President Trump. Certainly, Trump's norm breaking presidency impacted Canada in significant ways and the agricultural sector was no exception. In this issue, we have a set of four short articles discussing the possible implications on Canadian agriculture of transitioning from a Trump to Biden presidency. Issues related to Canada‐U.S. agricultural trade, political norms and uncertainty, U.S. domestic support, participation in trade agreements, and U.S.‐China relations are all considered. 相似文献
7.
8.
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
9.
Gregory Brown Robert Harris Wendy Hu Tim Jenkinson Steven N. Kaplan David T. Robinson 《Journal of Financial Economics》2021,139(2):561-577
Private equity performance, both for buyouts and venture capital, has been highly cyclical: periods of high fundraising have been followed by periods of low performance. Despite this seemingly predictable variation, we find modest gains, at best, to pursuing realistic, investable strategies that time capital commitments to private equity. This occurs, in part, because investors can only time their commitments to funds; they cannot time when commitments are called or when investments are exited. There is a high degree of time-series correlation in net cash flows even across commitment strategies that allocate capital in a very different manner over time. 相似文献
10.