全文获取类型
收费全文 | 47310篇 |
免费 | 1142篇 |
专业分类
财政金融 | 8626篇 |
工业经济 | 3328篇 |
计划管理 | 7920篇 |
经济学 | 10737篇 |
综合类 | 693篇 |
运输经济 | 320篇 |
旅游经济 | 741篇 |
贸易经济 | 7914篇 |
农业经济 | 1977篇 |
经济概况 | 6089篇 |
信息产业经济 | 4篇 |
邮电经济 | 103篇 |
出版年
2021年 | 284篇 |
2020年 | 520篇 |
2019年 | 701篇 |
2018年 | 1534篇 |
2017年 | 1560篇 |
2016年 | 1249篇 |
2015年 | 640篇 |
2014年 | 1009篇 |
2013年 | 4571篇 |
2012年 | 1319篇 |
2011年 | 1808篇 |
2010年 | 1582篇 |
2009年 | 1655篇 |
2008年 | 1621篇 |
2007年 | 1591篇 |
2006年 | 1051篇 |
2005年 | 1005篇 |
2004年 | 1028篇 |
2003年 | 1048篇 |
2002年 | 920篇 |
2001年 | 869篇 |
2000年 | 874篇 |
1999年 | 779篇 |
1998年 | 799篇 |
1997年 | 736篇 |
1996年 | 713篇 |
1995年 | 649篇 |
1994年 | 697篇 |
1993年 | 723篇 |
1992年 | 692篇 |
1991年 | 717篇 |
1990年 | 620篇 |
1989年 | 530篇 |
1988年 | 521篇 |
1987年 | 524篇 |
1986年 | 539篇 |
1985年 | 774篇 |
1984年 | 745篇 |
1983年 | 736篇 |
1982年 | 694篇 |
1981年 | 609篇 |
1980年 | 582篇 |
1979年 | 591篇 |
1978年 | 517篇 |
1977年 | 448篇 |
1976年 | 377篇 |
1975年 | 386篇 |
1974年 | 331篇 |
1973年 | 324篇 |
1972年 | 256篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Rodríguez Gabriel Ojeda Cunya Junior A. Gonzáles Tanaka José Carlos 《Portuguese Economic Journal》2019,18(2):107-123
Portuguese Economic Journal - A set of RLS-type models with ARMA and ARFIMA dynamics is estimated and compared in a forecasting exercise with ARFIMA, GARCH and FIGARCH models. It is an extension of... 相似文献
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.
4.
Stephen G. Dimmock William C. Gerken Zoran Ivković Scott J. Weisbenner 《Journal of Financial Economics》2018,127(1):113-135
Differences in accrued gains and investors’ tax-sensitivity induce variation in a capital gains lock-in effect across mutual funds even for the same stock at the same time. Exploiting this variation, we show this effect influences funds’ governance decisions: higher capital gains decrease the likelihood a fund exits prior to contentious votes and increase the likelihood a fund votes against management. Consistent with tax motivation, these findings are concentrated among funds with tax-sensitive investors. Further, high aggregate capital gains across funds holding a stock predict a higher likelihood management loses a vote and a lower likelihood a contentious vote is proposed. 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.
Without guaranteed compensation, granted by the German Renewable Energy Sources Act (Erneuerbare Energien Gesetz/EEG), biogas plants compete with all other plant types on the market for electrical energy. However, exchange-based electricity products do not currently permit an economically viable operation of biogas plants owing to their cost situation. 相似文献
7.
8.
Hilliard Jitka Jahera John S. Zhang Haoran 《Review of Quantitative Finance and Accounting》2019,53(4):1165-1193
Review of Quantitative Finance and Accounting - We examine how changes in dividend policy in 2008 as the financial crisis was unfolding influenced firm risk-adjusted returns in the following years.... 相似文献
9.
Most development projects encounter a highly uncertain entitlement process that is largely uncontrollable by developers. In this study, entitlement is modeled as a separate stage within a compound real option, where developers begin with minimal control (maximum risk) and each successful stage increases control (decreases risk). We solve the model analytically, provide three‐dimensional numerical comparisons, and empirically test the model's predictions using hand collected rezoning petitions. Our main result refines the classic development option model: developers first invest early (secure entitlements) in order to obtain the option to subsequently delay investment (construct the optimal building at the optimal time). 相似文献
10.
Farasat A. S. Bokhari Franco Mariuzzo Arnold Polanski 《Journal of Economics & Management Strategy》2020,29(3):516-542
During patent litigation, pay‐for‐delay (P4D) deals involve a payment from a patent holder of a branded drug to a generic drug manufacturer to delay entry and withdraw the patent challenge. In return for staying out of the market, the generic firm receives a payment, and/or an authorized licensed entry at a later date, but before the patent expiration. We examine why such deals are stable when there are multiple potential entrants. We combine the first‐mover advantage for the first generic with the ability of the branded manufacturer to launch an authorized generic (AG) to show when P4D deals are an equilibrium outcome. We further show that limiting a branded firm's ability to launch an AG before entry by a successful challenger will deter such deals. However, removing exclusivity period for the first generic challenger will not. 相似文献