全文获取类型
收费全文 | 2238篇 |
免费 | 53篇 |
专业分类
财政金融 | 347篇 |
工业经济 | 116篇 |
计划管理 | 320篇 |
经济学 | 613篇 |
综合类 | 55篇 |
运输经济 | 15篇 |
旅游经济 | 22篇 |
贸易经济 | 344篇 |
农业经济 | 159篇 |
经济概况 | 299篇 |
邮电经济 | 1篇 |
出版年
2021年 | 16篇 |
2020年 | 32篇 |
2019年 | 45篇 |
2018年 | 66篇 |
2017年 | 76篇 |
2016年 | 65篇 |
2015年 | 30篇 |
2014年 | 63篇 |
2013年 | 234篇 |
2012年 | 75篇 |
2011年 | 102篇 |
2010年 | 79篇 |
2009年 | 81篇 |
2008年 | 78篇 |
2007年 | 62篇 |
2006年 | 54篇 |
2005年 | 45篇 |
2004年 | 44篇 |
2003年 | 30篇 |
2002年 | 35篇 |
2001年 | 29篇 |
2000年 | 40篇 |
1999年 | 27篇 |
1998年 | 27篇 |
1997年 | 29篇 |
1996年 | 30篇 |
1995年 | 18篇 |
1994年 | 28篇 |
1993年 | 32篇 |
1992年 | 37篇 |
1991年 | 28篇 |
1990年 | 30篇 |
1989年 | 19篇 |
1988年 | 25篇 |
1987年 | 21篇 |
1986年 | 18篇 |
1985年 | 33篇 |
1984年 | 33篇 |
1983年 | 37篇 |
1982年 | 27篇 |
1981年 | 33篇 |
1980年 | 25篇 |
1979年 | 29篇 |
1978年 | 26篇 |
1977年 | 16篇 |
1976年 | 20篇 |
1975年 | 21篇 |
1974年 | 16篇 |
1973年 | 26篇 |
1972年 | 16篇 |
排序方式: 共有2291条查询结果,搜索用时 15 毫秒
1.
Whelan Garvan Hanly Paul O’Connell Vincent Dittrich Oldřich Ludwig Abu Ghazalah Naser 《International Advances in Economic Research》2021,27(1):17-27
International Advances in Economic Research - Based on transaction-cost and resource-based theories (and other approaches), there is an extensive literature on the range of factors that are viewed... 相似文献
2.
Brian O’Neill Dinesh Mohan 《International journal of injury control and safety promotion》2020,27(1):3-11
AbstractNot long after the beginnings of motorization in the early 1900s, deaths and injuries from motor vehicle crashes became a problem in a number of high-income-countries (HIC)s, especially the United States. With the biggest problem the US led early efforts to address this issue, and for six decades these efforts were based on folklore (ie a body of widely held but false or unsubstantiated beliefs). They were not evaluated, but clearly were unsuccessful as crash deaths and injuries continued to rise. It was not until the 1970s that a broader range of countermeasures began to be adopted and was scientifically evaluated, and as a result, crash deaths and injuries declined. This history has important lessons today for many low-and-middle-income countries that have growing numbers of motor vehicle crash deaths and injuries, many of which are pedestrians and motorcyclists. This is because there continue to be advocates for many of the failed approaches (especially educational) that dominated the early efforts in HICs. 相似文献
3.
Arvid O. I. Hoffmann Stefanie Kleimeier Nagihan Mimiroglu Joost M. E. Pennings 《International Review of Finance》2019,19(3):641-651
We examine the impact of innovation disclosure through patenting on firms' cost of debt, focusing on the American Inventors Protection Act (AIPA) as an exogenous shock in innovation disclosure regulation. Post‐AIPA, firms have an incentive to apply for patents only if commercial success is likely. Accordingly, we expect post‐AIPA patents to be a better proxy for successful innovation activity, and thus to have a stronger effect on reducing the cost of debt than pre‐AIPA patents. Indeed, we find that pre‐AIPA patents reduce the cost of debt only for the most innovative firms, while post‐AIPA, this effect holds for all firms. 相似文献
4.
Household Determinants of the Adoption of Improved Cassava Varieties using DNA Fingerprinting to Identify Varieties in Farmer Fields: A Case Study in Colombia 下载免费PDF全文
Victorino O. Floro IV Ricardo A. Labarta Luis A. Becerra López‐Lavalle Jose M. Martinez Tatiana M. Ovalle 《Journal of Agricultural Economics》2018,69(2):518-536
We examine factors affecting the adoption of improved cassava varieties of 217 households in the Cauca Department in southwest Colombia. Using DNA fingerprinting through Single Nucleotide Polymorphisms (SNPs), we identified different cultivars in farmers fields. We also used this information to remove possible bias in the adoption model that could have resulted from a misclassification of improved varieties (IVs). As a result, we found that farmers substantially overestimate their use of IVs and there are important differences in the determinants of adoption between farmer self‐identification and DNA fingerprinting. This finding implies that the incorporation of DNA fingerprinting in IV adoption studies is important to ensure the accuracy of future agricultural economic research and the relevance of subsequent policy recommendations. 相似文献
5.
Jonathan E. Ogbuabor God’stime O. Eigbiremolen Gladys C. Aneke Manasseh O. Charles 《Asian-Pacific economic literature》2018,32(1):29-44
We examine the dynamics of output connectedness of Asian Pacific Economic Cooperation (APEC) economies using time‐varying, region‐specific, generalised connectedness measures. We find that the connectedness of APEC economies with the rest of the world is quite substantial, with the 2008–09 Global Financial Crisis increasing the connectedness measures above their precrisis levels. The USA, China, and Korea are shown to be systemically important and to dominate APEC’s real activities, while outside the APEC region the roles of India and the UK are also non‐negligible. These results suggest that the majority of APEC economies are considerably open to output shocks from the dominant economies such that policymakers in APEC must be continuously conscious of headwinds originating from these sources. 相似文献
6.
7.
We use a unique data set of hedge fund long equity and equity option positions to investigate a significant lockup-related premium earned during the tech bubble (1999–2001) and financial crisis (2007–2009). Net fund flows are significantly greater among lockup funds during crisis and noncrisis periods. Managers of hedge funds with locked-up capital trade opportunistically against flow-motivated trades of non-lockup managers, consistent with a hypothesis of rent extraction in providing crisis era liquidity. The success of this opportunistic trading is concentrated during periods of high borrowing costs, in less liquid stock markets, and is enhanced by hedging in the equity option market. 相似文献
8.
Annette Pascual-Marrero Ediel O. Ramos-Meléndez José E. Morales-Quiñones Pablo Rodríguez-Ortiz 《International journal of injury control and safety promotion》2018,25(1):14-22
This study aimed to describe the distribution of injury mechanisms and to assess the impact of those mechanisms on the morbidity and mortality of trauma. All patients admitted to Puerto Rico Trauma Hospital (2002–2011) for road-traffic collisions (RTCs, 5,371), gunshot wounds (GSWs, 2,946), falls (2,319), pedestrian accidents (1,652), and stab wounds (SWs, 1,073) were selected. Gunshot victims were 1.19 (95%CI: 1.07–1.33) times as likely as road-traffic victims to have an ISS ≥25. Pedestrians were 1.76 (95%CI: 1.49–2.09) times more likely to have a GCS ≤8 than road-traffic victims were. The risk of dying was 2.64 (95%CI: 2.20–3.16) times higher for gunshot victims and 1.51 (95%CI: 1.23–1.86) times higher for pedestrians compared to patients who had had RTCs. Gunshot victims and pedestrians had the worst clinical outcomes. Accordingly, these patients should receive the most aggressive clinical management. Furthermore, it is imperative to develop public health campaigns on trauma prevention. 相似文献
9.
O. V. Mazurova 《Studies on Russian Economic Development》2018,29(2):161-166
Several Russian and foreign forecasts of energy industry development have been analyzed that were made in various years for up to 20–25 years. The extent and type of temporal variations in uncertainty ranges of forecast indexes in Russia and worldwide have been studied. The indexes include fluctuations of energy commodity prices, electricity and fuel production and consumption, etc. The calculated data have been given. The relations of uncertainty ranges of different indexes to the change in the considered timeframe have been constructed. 相似文献
10.
This article presents a medium-term forecast of the development of the Russian nanoindustry, taking into account the assumed transition of the industry from the formation stage to the investment growth stage. Problems associated with the estimated output volumes of products in the Russian nanoindustry are considered, since the trends recorded in the primary statistical data are very far from reflecting the real situation due to the imperfection of the system of statistics of nano-containing products, as well as a reduction of state funding and a decline in the intensity of research in the industry. It is concluded that a full-fledged industry has not been yet completely formed in Russia and it actually exists only as a statistical phenomenon; in addition, the project really set different objectives from the declared creation of a breakthrough high-technology branch. 相似文献