全文获取类型
收费全文 | 11441篇 |
免费 | 560篇 |
国内免费 | 78篇 |
专业分类
财政金融 | 1262篇 |
工业经济 | 501篇 |
计划管理 | 2045篇 |
经济学 | 1808篇 |
综合类 | 812篇 |
运输经济 | 191篇 |
旅游经济 | 448篇 |
贸易经济 | 3143篇 |
农业经济 | 556篇 |
经济概况 | 1313篇 |
出版年
2024年 | 32篇 |
2023年 | 191篇 |
2022年 | 179篇 |
2021年 | 332篇 |
2020年 | 486篇 |
2019年 | 462篇 |
2018年 | 382篇 |
2017年 | 456篇 |
2016年 | 363篇 |
2015年 | 312篇 |
2014年 | 490篇 |
2013年 | 1126篇 |
2012年 | 715篇 |
2011年 | 918篇 |
2010年 | 552篇 |
2009年 | 531篇 |
2008年 | 981篇 |
2007年 | 859篇 |
2006年 | 792篇 |
2005年 | 560篇 |
2004年 | 362篇 |
2003年 | 255篇 |
2002年 | 186篇 |
2001年 | 108篇 |
2000年 | 96篇 |
1999年 | 82篇 |
1998年 | 53篇 |
1997年 | 49篇 |
1996年 | 31篇 |
1995年 | 17篇 |
1994年 | 13篇 |
1993年 | 7篇 |
1992年 | 9篇 |
1991年 | 6篇 |
1990年 | 4篇 |
1989年 | 4篇 |
1988年 | 4篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 12篇 |
1984年 | 18篇 |
1983年 | 11篇 |
1982年 | 13篇 |
1981年 | 8篇 |
1980年 | 2篇 |
1979年 | 4篇 |
1978年 | 2篇 |
1977年 | 1篇 |
1973年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
171.
Francesca Biagini 《Decisions in Economics and Finance》2002,25(1):1-17
The mean-variance hedging approach for pricing and hedging claims in incomplete markets was originally introduced for risky
assets. The aim of this paper is to apply this approach to interest rate models in the presence of stochastic volatility,
seen as a consequence of incomplete information. We fix a finite number of bonds such that the volatility matrix is invertible
and provide an explicit formula for the density of the variance-optimal measure which is independent of the chosen times of
maturity.
Finally, we compute the mean-variance hedging strategy for a caplet and compare it with the optimal stategy according to the
local risk minimizing approach.
Received: 14 July 2000 / Accepted: 10 April 2001 相似文献
172.
文中介绍了RFID技术在商品储运领域中的优势,然后从危险品跟踪、集装箱跟踪、食品跟踪和仓库管理等方面列举了RFID在商品储运领域的典型应用,最后分析RFID在商品储运领域的应用环节。 相似文献
173.
Mark S. Leclair 《Economic Systems Research》2002,14(2):147-156
This paper examines the effect that export composition had upon manufacturing employment in the US during the 1991 recession. Although it takes, on average, approximately $66 000 in exports to create one job, the exact gains in terms of total employment depend upon the labour-intensity of the products being exported. Foreign sales by the chemical and textile industries result in a far greater increase in employment than exports by the petroleum refining or steel industries. This analysis estimates the employment effects of manufacturing exports over the 1989-95 period, utilizing an input-output model to capture both direct and indirect effects. The results demonstrate that export composition has, at times, both strengthened and reduced demand for labour. Consequently, if job-creation is a national goal, it may be in the interests of the US to promote exports from sectors that are labour-using. 相似文献
174.
文章首先介绍了中美贸易的不平衡发展,然后重点分析了在中美贸易中的贸易利益流向和对双方的经济影响,进而找到解决此问题的积极可行的对策。 相似文献
175.
Robert U. Ayres 《Environmental and Resource Economics》1995,6(3):207-230
Economists are increasingly interested in forecasting future costs and benefits of policies for dealing with materials/energy fluxes, polluting emissions and environmental impacts on various scales, from sectoral to global. Computable general equilibrium (CGE) models are currently popular because they project demand and industrial structure into the future, along an equilibrium path. But they are applicable only to the extent that structural changes occur in or near equilibrium, independent of radical technological (or social) change. The alternative tool for analyzing economic implications of scenario assumptions is to use Leontief-type Input-Output (I-O) models. I-O models are unable to endogenize structural shifts (changing I-O coefficients). However, this can be a virtue when considering radical rather than incremental shifts. Postulated I-O tables can be used independently to check the internal consistency of scenarios. Or I-O models can be used to generate scenarios by linking them to econometric macro-drivers (which can, in principle, be CGE models). Explicit process analysis can be integrated, in principle, with I-O models. This hybrid scheme provides a natural means of satisfying physical constraints, especially the first and second laws of thermodynamics. This is important, to avoid constructing scenarios based on physically impossible processes. Process analysis is really the only available tool for constructing physically plausible alternative future I-O tables, and generating materials/energy and waste emissions coefficients. Explicit process analysis also helps avoid several problems characteristic of pure CGE or I-O models, viz. (1) aggregation errors (2) inability to handle arbitrary combinations of co-product and co-input relationships and (3) inability to reflect certain non-linearities such as internal feedback loops. 相似文献
176.
ABSTRACTIn this study, we examine various aspects of China’s trade, the U.S.’ trade, and the bilateral trade between the two countries. The analysis of each aspect has direct and indirect implications on trade conflicts between the two countries. We focus on important factors, such as the growth of trade, import penetration, increased competitiveness of Chinese firms, comparative advantages of Chinese goods, China’s WTO entry and its compliance, and bilateral trade imbalance. While each of the factors can lead to trade frictions, individual factors will not have led to a large-scale trade war. These factors converge within a brief period and thus can be considered the China shock, thereby making other countries’ adjustments to their economic structures difficult. Therefore, trade frictions are inevitable. 相似文献
177.
Laixun Zhao 《China Economic Journal》2019,12(2):231-244
ABSTRACTIn this paper, I examine the Sino-U.S. trade disputes from less-talked about angles: institutional differences, SOEs, hukou control and contemporary Chinese history. Based on these, I provide suggestions for future cooperation and improvement. 相似文献
178.
本文围绕“三江源”日益恶化的生态环境及由此引发的生态难民问题,从地理学的角度进行了综合分析,明确提出独特的自然环境系统和现代环境的变迁给源区牧民提供了极其狭小的空间,而人类活动中传统的生产方式、现代价值取向的变化、社会管理的失误以及落后的经济发展水平,无限制的对自然的索取,超越了环境系统所能承受的阀值,人类不得不听任自然的“安排”。因此,应通过合理规划,积极妥善地安置源区生态难民;调整产业结构,积极发展源区经济;科学管理,有计划地节制外来流动人员;发展教育,构建与源区生态相适宜的生态文化,实现区域可持续发展的“双赢”目标。 相似文献
179.
180.
北方牧区草地资源可持续利用的制度创新研究 总被引:3,自引:1,他引:3
我国北方牧区的天然草地发生了严重的退化,引发了一系列生态经济问题。导致草地退化的原因是多方面的, 制度供给不足和滞后是主要的社会经济原因。单纯依靠技术和资金投入治理退化草地,难以从根本上解决问题。应从科学发 展观的视角,通过改革现行草地所有权、使用权,完善草地资源管理制度,构建有助于体现草地资源生态价值的绿色考核体 系,实施有利于牧区发展的生态补偿政策,建立和完善草地利用和保护的激励机制,从而实现草地资源的可持续利用。 相似文献