全文获取类型
收费全文 | 28402篇 |
免费 | 718篇 |
国内免费 | 14篇 |
专业分类
财政金融 | 5582篇 |
工业经济 | 2124篇 |
计划管理 | 4752篇 |
经济学 | 6241篇 |
综合类 | 477篇 |
运输经济 | 153篇 |
旅游经济 | 496篇 |
贸易经济 | 4702篇 |
农业经济 | 1472篇 |
经济概况 | 3036篇 |
邮电经济 | 99篇 |
出版年
2021年 | 155篇 |
2020年 | 303篇 |
2019年 | 426篇 |
2018年 | 506篇 |
2017年 | 597篇 |
2016年 | 558篇 |
2015年 | 391篇 |
2014年 | 605篇 |
2013年 | 2652篇 |
2012年 | 723篇 |
2011年 | 761篇 |
2010年 | 709篇 |
2009年 | 793篇 |
2008年 | 797篇 |
2007年 | 774篇 |
2006年 | 662篇 |
2005年 | 635篇 |
2004年 | 565篇 |
2003年 | 623篇 |
2002年 | 564篇 |
2001年 | 563篇 |
2000年 | 609篇 |
1999年 | 525篇 |
1998年 | 527篇 |
1997年 | 540篇 |
1996年 | 534篇 |
1995年 | 511篇 |
1994年 | 508篇 |
1993年 | 516篇 |
1992年 | 530篇 |
1991年 | 543篇 |
1990年 | 465篇 |
1989年 | 381篇 |
1988年 | 360篇 |
1987年 | 378篇 |
1986年 | 408篇 |
1985年 | 585篇 |
1984年 | 574篇 |
1983年 | 528篇 |
1982年 | 522篇 |
1981年 | 535篇 |
1980年 | 463篇 |
1979年 | 470篇 |
1978年 | 388篇 |
1977年 | 334篇 |
1976年 | 308篇 |
1975年 | 288篇 |
1974年 | 236篇 |
1973年 | 250篇 |
1972年 | 178篇 |
排序方式: 共有10000条查询结果,搜索用时 153 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.
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
3.
4.
5.
Joseph Amankwah-Amoah Zaheer Khan Ellis L.C. Osabutey 《International Business Review》2021,30(3):101802
The emergence of the COVID-19 pandemic has adversely affected the fortunes of multiple companies around the globe. Accordingly, questions are increasingly being asked about how organizations can revitalize during and after a crisis. Yet, we have limited understanding of how organizations renew themselves during crises over time. We explore this question through the lens and examination of two South-Asian airlines: Pakistan International Airlines and Sri Lankan Airlines. The cases offer important insights into the reasons behind underperformance of state-controlled enterprises and renewal activities. We shed light on strategic renewal (SR) in the wake of increasing liberalization and deregulations in the global airline industry. To this end, we propose a four-stage approach towards renewing such underperforming organizations to respond effectively to black swan events and external shocks. 相似文献
6.
Intereconomics - Only a few years ago, it was a widespread belief that globalisation would trigger processes of democratisation worldwide. However, even old and established democracies such as the... 相似文献
7.
8.
9.
This paper studies the expansion of an option price (with bounded Lipschitz payoff) in a stochastic volatility model including a local volatility component. The stochastic volatility is a square root process, which is widely used for modeling the behavior of the variance process (Heston model). The local volatility part is of general form, requiring only appropriate growth and boundedness assumptions. We rigorously establish tight error estimates of our expansions, using Malliavin calculus. The error analysis, which requires a careful treatment because of the lack of weak differentiability of the model, is interesting on its own. Moreover, in the particular case of call–put options, we also provide expansions of the Black–Scholes implied volatility that allow to obtain very simple formulas that are fast to compute compared to the Monte Carlo approach and maintain a very competitive accuracy. 相似文献
10.
This study endeavors to enhance political marketing literature about the impact of lobbying on firm performance. Our sample is composed of 140 U.S. firms and spans the years 2007–2014 to encompass the 2007–2009 recession and the subsequent recovery period. Our findings indicate that lobbying expenses positively contribute to firm performance. Also, government contracts in both ways, dollar amount and number of government contracts, act as mediators between lobbying expenses and firm performance. In addition, organizational slack moderates the relationship between lobbying expenses and government contracts. The managerial implications suggest that lobbying expenses can be leveraged as a potent tool for firm performance. Firms with larger lobbying efforts acquired both, higher dollar amounts and a greater number of government contracts. 相似文献