全文获取类型
收费全文 | 2199篇 |
免费 | 48篇 |
国内免费 | 13篇 |
专业分类
财政金融 | 347篇 |
工业经济 | 62篇 |
计划管理 | 604篇 |
经济学 | 483篇 |
综合类 | 124篇 |
运输经济 | 11篇 |
旅游经济 | 21篇 |
贸易经济 | 204篇 |
农业经济 | 208篇 |
经济概况 | 196篇 |
出版年
2024年 | 7篇 |
2023年 | 15篇 |
2022年 | 25篇 |
2021年 | 23篇 |
2020年 | 48篇 |
2019年 | 28篇 |
2018年 | 29篇 |
2017年 | 35篇 |
2016年 | 32篇 |
2015年 | 51篇 |
2014年 | 109篇 |
2013年 | 88篇 |
2012年 | 91篇 |
2011年 | 719篇 |
2010年 | 106篇 |
2009年 | 72篇 |
2008年 | 108篇 |
2007年 | 62篇 |
2006年 | 81篇 |
2005年 | 61篇 |
2004年 | 34篇 |
2003年 | 50篇 |
2002年 | 32篇 |
2001年 | 45篇 |
2000年 | 40篇 |
1999年 | 63篇 |
1998年 | 62篇 |
1997年 | 65篇 |
1996年 | 67篇 |
1995年 | 2篇 |
1994年 | 3篇 |
1993年 | 1篇 |
1992年 | 3篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 1篇 |
排序方式: 共有2260条查询结果,搜索用时 0 毫秒
31.
黄连玉 《黄石理工学院学报》2002,18(2):71-72
介绍了药品的分类方法及其依据,探讨了药品分类管理的界定和目标,并指出实行药品分类管理的实际意义就是推动医院药学转型,适应我国经济发展的需要。 相似文献
32.
This paper considers price discrimination when competing firms do not observe a customer’s type but only some other variable correlated to it. This is a typical situation in many insurance markets—such as motor insurance—where it is also often the case that insurance is compulsory. We characterise the equilibria and their welfare properties under various price regimes. We show that discrimination based on immutable characteristics such as gender is a dominant strategy, either when firms offer policies at a fixed price or when they charge according to some consumption variable that is correlated to costs. In the latter case, gender discrimination can be an outcome of strategic interaction alone in situations where it would not be adopted by a monopolist. Strategic price discrimination may also increase cross subsidies between types, contrary to expectations.JEL Classification No.: L13, G22 相似文献
33.
聚乙烯醇产品的市场研究 总被引:7,自引:0,他引:7
马磊 《石油化工技术经济》2003,19(4):42-49
对聚乙烯醇树脂产品进行了产业背景、供求态势、市场细分与评估以及竞争力分析等全面研究,为聚乙烯醇项目建设、产品方案规划与市场营销提供决策参考。 相似文献
34.
Sven Rady 《Finance and Stochastics》1997,1(4):331-344
This paper uses a probabilistic change-of-numeraire technique to compute closed-form prices of European options to exchange
one asset against another when the relative price of the underlying assets follows a diffusion process with natural boundaries
and a quadratic diffusion coefficient. The paper shows in particular how to interpret the option price formula in terms of
exercise probabilities which are calculated under the martingale measures associated with two specific numeraire portfolios.
An application to the pricing of bond options and certain interest rate derivatives illustrates the main results. 相似文献
35.
Charles Goodhart Yuanchen Chang Richard Payne 《Journal of International Money and Finance》1997,16(6):921-930
In this paper we investigate the efficiency of a class of transaction-generating algorithms, originally suggested in Bollerslev and Domowitz (1993). Our comparison utilizes real transaction data recorded over Reuters D2000-2 electronic broking system for 7 h in June 1993 and transaction data generated from FXFX quotations over an identical period. Results suggest that, at this high-frequency data sampling, the performance of these transaction-generating algorithms is poor, with the most likely explanation of this outcome due to the high-frequency characteristics of FXFX spreads and quotation intensity. 相似文献
36.
Recent breakthroughs in the theory of exchange rate target zones have not been followed by similar contributions on the empirical side. The drift adjustment method of evaluating the credibility of a target zone has become common practice. However, the estimates of the expected rate of depreciation inside the band do not model knowledge of the band in the agents' information set. In this paper, a rational expectations limited-dependent variable method to estimate the expected rate of depreciation is used to remedy this weakness. In the case of the franc-mark target zone with daily data covering a 4-year period, we show that expected rates of devaluation of the order of 2.5% were still present in the early 1990s. Their reappearance in the autumn of 1992 may thus not be surprising. 相似文献
37.
Central bank intervention and the volatility of foreign exchange rates: evidence from the options market 总被引:1,自引:0,他引:1
This paper tests the effects of central bank intervention on the ex ante volatility of $/DM and $/yen exchange rates between 1985 and 1991. In contrast to previous research which employed GARCH estimates of conditional volatility, we estimate ex ante volatility using the implied volatilities of currency option prices. We also control for the effects of other macroeconomic announcements. We find little support for the hypothesis that central bank intervention decreases expected exchange rate volatility. Instead, central bank intervention is generally associated with a positive change in ex ante exchange rate volatility, or with no change. 相似文献
38.
Mack Ott 《Journal of International Money and Finance》1996,15(6):899-924
Exchange rates have deviated substantially and idiosyncratically from purchasing power parity (PPP) since the breakdown of Bretton Woods. In this paper, a model incorporating both traditional PPP and financial market variables is constructed and tested on the US dollar's six G7 exchange rates during the floating rate era. Empirical tests show that the model's common set of variables—with consistent signs—can explain the divergent behavior of G7 exchange rates during 1973.2–90.2. Idiosyncracies are reflected in different subsets of the model's variables entering significantly into each exchange rate's regression; the existence of stable relationships is demonstrated by the equations' co-integration. 相似文献
39.
Ben Jacobsen 《Journal of Empirical Finance》1996,3(4):393-417
We show, using the modified rescaled range statistic, that none of the return series of indices of five European countries, the United States and Japan exhibits long term dependence. This statistic — introduced by Lo (1991) — correct Hurst's (1951) ‘classical’ rescaled range statistic for short term dependence. We also report the classical rescaled range statistic after adjusting the series for short term dependence. This procedure shows, for cases where the results of the modified rescaled range statistic are mixed, that no long term dependence can be found. Simulations indicate reasonable power of this adjustment procedure. Furthermore, we find that estimates of the Hurst exponent, a related measure of long term dependence, are also biased by short term dependence. Simulations show that this measure — that has recently attracted growing interest — cannot distinguish between models with or without long term dependence. 相似文献
40.
The Miles and Snow strategic type framework is re‐examined with respect to interrelationships with several theoretically relevant batteries of variables, including SBU strategic capabilities, environmental uncertainty, and performance. A newly developed constrained, multi‐objective, classification methodology is modified to empirically derive an alternative quantitative typology using survey data obtained from 709 firms in three countries (China, Japan, United States). We compare the Miles and Snow typology to the classification empirically derived utilizing this combinatorial optimization clustering procedure. With respect to both variable battery associations and objective statistical criteria, we show that the empirically derived solution clearly dominates the traditional P‐A‐D‐R typology of Miles and Snow. Implications and directions for future research are provided. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献