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71.
随着人们自己支配的时间和收入的增加,休闲将成为生活中的一个重要组成部分.而休闲经济作为日益火爆的经济现象也越来越受到人们的关注.分析和研究与此有关的种种问题,特别是与人的本质及生存条件的种种联系是本文的主旨. 相似文献
72.
李明 《石油工业技术监督》2003,19(7):1-2,6
阐述了国内外V带现行标准状况,指出通用V带标准应用于抽油机V带存在的问题。针对抽油机用V带寿命不足5000h的问题,提出制定符合中国油田实际的《抽油机用V带》新标准,并从五个方面提出了编写新标准的建议。 相似文献
73.
Hans‐Martin Krolzig 《Oxford bulletin of economics and statistics》2003,65(Z1):769-801
Structural vector autoregressive (SVAR) models have emerged as a dominant research strategy in empirical macroeconomics, but suffer from the large number of parameters employed and the resulting estimation uncertainty associated with their impulse responses. In this paper, we propose general‐to‐specific (Gets) model selection procedures to overcome these limitations. It is shown that single‐equation procedures are generally efficient for the reduction of recursive SVAR models. The small‐sample properties of the proposed reduction procedure (as implemented using PcGets) are evaluated in a realistic Monte Carlo experiment. The impulse responses generated by the selected SVAR are found to be more precise and accurate than those of the unrestricted VAR. The proposed reduction strategy is then applied to the US monetary system considered by Christiano, Eichenbaum and Evans (Review of Economics and Statistics, Vol. 78, pp. 16–34, 1996) . The results are consistent with the Monte Carlo and question the validity of the impulse responses generated by the full system. 相似文献
74.
供应链管理绩效评价及激励机制 总被引:7,自引:0,他引:7
本文通过分析供应链管理的特点、目标和内容,提出供应链管理绩效评价指标体系,其中矩阵指标具有一定的创新,且较好地反映了供应链企业之间的复杂关系。介绍了确定供应链管理的绩效指标值的两种方法,并分析了供应链管理六种激励模式。 相似文献
75.
黄庆安 《福建商业高等专科学校学报》2003,(3):13-14
当前,福建国有外贸企业的经营发展环境正面临深刻变化,机遇与挑战并存,优势与制约同在.因此,福建国有外贸企业要想在对外开放的新格局中,取得进一步发展,就必须在充分认识自身存在问题的基础上,利用和发挥已有的优势,理清思路,正确定位,采取积极的战略措施,把握新机遇,增创新优势. 相似文献
76.
Dominic Gasbarro Kim‐Song Le Robert G. Schwebach J. Kenton Zumwalt 《The Journal of Financial Research》2004,27(1):133-141
Announcements of syndication loans increase borrowers' shareholder wealth if they are revolving credit agreements but not if they are term loans. Share price responses to revolving credit announcements are positive and significant, whereas the wealth effect for term loans is negative and significant. The results show that announcements from both the financial press and commercial information providers can affect borrower share price reaction. Overall, single syndication announcements appear to be more newsworthy than multiple announcements reported in the financial press, and we find evidence of information leakage, post‐announcement drift, or both. 相似文献
77.
In this paper we examine variance bound tests of the joint hypothesis that (1) bond markets are efficient and (2) the term structure is determined by the expectations hypothesis. Both the Singleton and Shiller tests are shown to be seriously biased toward rejecting the joint hypothesis in finite samples. Flavin's test is unbiased but has a very high variance leading to many false rejections of the joint hypothesis. When corrected as suggested by Flavin, Shiller's test is unbiased and has a relatively low variance. Unfortunately, it is also sensitive to measurement error. 相似文献
78.
Ming Huang 《Journal of Economic Theory》2003,109(1):104-129
We study an equilibrium in which agents face surprise liquidity shocks and invest in liquid and illiquid riskless assets. The random holding horizon from liquidity shocks makes the return of the illiquid security risky. The equilibrium premium for such risk depends on the constraint that agents face when borrowing against future income; it is insignificant without borrowing constraint, but can be very high with borrowing constraint. Illiquidity, therefore, can have large effects on asset returns when agents face liquidity shocks and borrowing constraints. This result can help us understand why some securities have high liquidity premia, despite low turnover frequency. 相似文献
79.
Paul Willman Mark Fenton‐O'Creevy Nigel Nicholson Emma Soane 《Journal of Management Studies》2006,43(6):1357-1374
abstract Efficient market models cannot explain the high level of trading in financial markets in terms of asset portfolio adjustment. It is presumed that much of this excessive trading is irrational ‘noise’ trading. A corollary is that there must either be irrational traders in the market or rational traders with irrational aberrations. The paper reviews the various attempts to explain noise trading in the finance literature, concluding that the persistence of irrationality is not well explained. Data from a study of 118 traders in four large investment banks are presented to advance reasons why traders might seek to trade more frequently than financial models predict. The argument is advanced that trades do not simply occur in order to generate profit, but it does not follow that such trading is irrational. Trading may generate information, accelerate learning, create commitments and enhance social capital, all of which sustain traders' long term survival in the market. The paper treats noise trading as a form of operational risk facing firms operating in financial markets and discusses approaches to the management of such risk. 相似文献
80.
This paper uses the Russian Longitudinal Monitoring Survey (RLMS) to analyse the dynamics of moonlighting by the working‐age population. We find that moonlighting is transitory and that a desire to switch jobs expressed in the past is positively related to moonlighting in the present and to actual job changes in the future. We also find that workers who moonlighted as self‐employed in the past represent 26.5 percent of the new self‐employed. These results suggest that moonlighting in Russia can be seen as an effective incubator for setting up new self‐employed businesses, thereby providing long‐term benefits for the economy. 相似文献