全文获取类型
收费全文 | 97047篇 |
免费 | 6833篇 |
国内免费 | 200篇 |
专业分类
财政金融 | 8250篇 |
工业经济 | 4289篇 |
计划管理 | 22386篇 |
经济学 | 16738篇 |
综合类 | 17397篇 |
运输经济 | 845篇 |
旅游经济 | 1722篇 |
贸易经济 | 12549篇 |
农业经济 | 7269篇 |
经济概况 | 12633篇 |
信息产业经济 | 2篇 |
出版年
2025年 | 139篇 |
2024年 | 963篇 |
2023年 | 1276篇 |
2022年 | 1609篇 |
2021年 | 2413篇 |
2020年 | 3199篇 |
2019年 | 2208篇 |
2018年 | 1758篇 |
2017年 | 1996篇 |
2016年 | 2191篇 |
2015年 | 2664篇 |
2014年 | 6142篇 |
2013年 | 7067篇 |
2012年 | 8124篇 |
2011年 | 10076篇 |
2010年 | 7434篇 |
2009年 | 6437篇 |
2008年 | 6976篇 |
2007年 | 6363篇 |
2006年 | 6161篇 |
2005年 | 4628篇 |
2004年 | 3280篇 |
2003年 | 2788篇 |
2002年 | 1910篇 |
2001年 | 1816篇 |
2000年 | 1213篇 |
1999年 | 653篇 |
1998年 | 331篇 |
1997年 | 309篇 |
1996年 | 245篇 |
1995年 | 167篇 |
1994年 | 117篇 |
1993年 | 125篇 |
1992年 | 100篇 |
1991年 | 79篇 |
1990年 | 64篇 |
1989年 | 43篇 |
1988年 | 39篇 |
1987年 | 17篇 |
1986年 | 17篇 |
1985年 | 184篇 |
1984年 | 219篇 |
1983年 | 169篇 |
1982年 | 126篇 |
1981年 | 61篇 |
1980年 | 75篇 |
1979年 | 46篇 |
1978年 | 37篇 |
1977年 | 23篇 |
1973年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 19 毫秒
991.
992.
Stylized facts of returns and volatility are an important approximation tool for empirical finance studies, especially in the area of young and new assets. In this paper, we examine the return and volatility properties of four non-fungible tokens (NFTs) and four cryptocurrencies from 24th January 2018–2nd August 2022. The results show the following: Firstly, the returns of both NFTs and cryptocurrencies have fat tails, with evidence of tail exponents following the inverse cubic-law, along with clear persistence behavior. Secondly, all returns exhibit volatility clustering, albeit to varying degrees, and the detected absence of inverse volatility-asymmetry challenges the safe-haven property often documented for cryptocurrencies. Thirdly, return-based long-memory is slightly more intense than volatility-based long-memory, especially for NFTs, which demonstrate a predictability contesting market efficiency. These findings are generally consistent with previous findings on equities, implying that the return and volatility behavior of NFTs and cryptocurrencies is leaning towards that of traditional assets. 相似文献
993.
994.
印度股票市场改革的经验与启示 总被引:1,自引:0,他引:1
印度股票市场改革对中国的启示主要在于,作为一个转型经济国家在发展金融市场尤其是股票市场的过程中出现某些消极问题在某种意义上是可以的,关键在于改革者要在既定的约束条件下完善相关的制度和规则,从而引导相关利益主体的行为以实现效率改进,同时在制度移植和模仿方面要注意有关的适用条件,在改革方式上宜快则快。 相似文献
995.
This paper provides empirical evidence to the theoretical claim that rare disaster risks have predictability for exchange rate returns and volatility using a nonparametric quantile-based methodology. Using dollar-based exchange rates for Brazil, Russia, India, China, and South Africa, the quantile-causality test shows that indeed rare disaster-risks affects both returns and volatility over the majority of their respective conditional distributions. In addition, these effects are much stronger when compared to those using the British pound, especially in terms of currency returns. 相似文献
996.
Competence-based learning and qualifications have been developed and progressively introduced into vocational and professional education and training within the United Kingdom over the past decade. This paper traces their development and history. The reasons for the development of the competence-based system and some of the main features of the NVQ system of qualifications are outlined. The paper ends with a review of the issues which remain to be fully addressed. 相似文献
997.
吕利民 《内蒙古财经学院学报(综合版)》2008,(2):63-65
培养什么人,如何培养人,是高等教育的一个重大课题。在新的形势下,大学生的思想政治状况究竟如何?大学生思想教育究竟面临什么样的挑战?如何切实加强大学生思想政治教育工作?是我们作为高校教师特别是专门从事学生管理工作的教师应该重视和思考的问题。 相似文献
998.
重整企业信用修复日益受到重视,并且司法实践已经开启个案探索,亟待推进重整企业信用修复的制度建设.重整企业信用修复制度应当以企业拯救为目的,以准予修复为原则、不予修复为例外,以主动、高效为根本要求.重整企业信用修复应当构建以\"府院协调\"为基础,信用服务机构、银行等多元主体参与的机制,并且对信用修复方式进行革新,为重整企业... 相似文献
999.
ABSTRACTSince the Belt and Road Initiative (BRI) has been implemented for five years, it is time to ask whether the BRI contributes to Belt and Road (BR) countries’ economic growth, and how are the five elements of connectivity implemented between China and its partner countries since the BRI was proposed. This study focuses on the development of the five elements of connectivity between China and the BR countries from 2008 to 2017 using a comprehensive connectivity index extracted from principle component analysis, and then investigating if the connectivity has contributed to the economic growth of the BR countries with quantitative analysis of the fixed effect econometrical model. It is found that Russia, South Korea, and Singapore presented the top three levels of connectivity with China with regard to the overall connectivity index, varying from 1.4 to 2.4. Madagascar and Panama have the lowest level of connectivity with China, with values of ?0.8 to ?1.1. The result of the fixed effect model shows that the connectivity of the BR countries with China contributes to their economic growth. This provides quantitative evidence that the connectivity between BR countries and China has a significant influence on the economic growth of those countries. 相似文献
1000.
近年来,随着图们江区域开发开放速度的加快,吉林省对朝边境贸易往来快速发展,人民币现钞在中朝边境贸易中作为支付货币的规模在不断上升。方便、快捷、低成本的人民币现钞结算进一步促进了吉林省边境贸易快速发展,有效支持了边境地区经济社会加快发展。本文以位于中、朝、俄三国交界,且人民币现钞结算量占吉林省总量95%以上的延边朝鲜族自治州为例,分析中朝贸易人民币现钞结算的成因以及存在的问题,并提出相关建议。 相似文献