全文获取类型
收费全文 | 3720篇 |
免费 | 209篇 |
国内免费 | 23篇 |
专业分类
财政金融 | 537篇 |
工业经济 | 139篇 |
计划管理 | 770篇 |
经济学 | 1086篇 |
综合类 | 29篇 |
运输经济 | 109篇 |
旅游经济 | 110篇 |
贸易经济 | 847篇 |
农业经济 | 118篇 |
经济概况 | 204篇 |
邮电经济 | 3篇 |
出版年
2024年 | 1篇 |
2023年 | 67篇 |
2022年 | 58篇 |
2021年 | 72篇 |
2020年 | 142篇 |
2019年 | 166篇 |
2018年 | 234篇 |
2017年 | 298篇 |
2016年 | 232篇 |
2015年 | 138篇 |
2014年 | 176篇 |
2013年 | 720篇 |
2012年 | 226篇 |
2011年 | 183篇 |
2010年 | 190篇 |
2009年 | 166篇 |
2008年 | 126篇 |
2007年 | 117篇 |
2006年 | 88篇 |
2005年 | 99篇 |
2004年 | 76篇 |
2003年 | 57篇 |
2002年 | 63篇 |
2001年 | 50篇 |
2000年 | 37篇 |
1999年 | 39篇 |
1998年 | 12篇 |
1997年 | 20篇 |
1996年 | 11篇 |
1995年 | 12篇 |
1994年 | 16篇 |
1993年 | 8篇 |
1992年 | 6篇 |
1991年 | 4篇 |
1990年 | 4篇 |
1989年 | 4篇 |
1987年 | 5篇 |
1986年 | 3篇 |
1985年 | 7篇 |
1984年 | 4篇 |
1983年 | 2篇 |
1981年 | 1篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1977年 | 2篇 |
1976年 | 4篇 |
1975年 | 1篇 |
1973年 | 1篇 |
1971年 | 1篇 |
1890年 | 1篇 |
排序方式: 共有3952条查询结果,搜索用时 15 毫秒
101.
A new voting rule for electing committees is described. Specifically, we use approval balloting and propose a new voting procedure that guarantees that if there is a committee that represents (with a given proportion of representatives) all of the existing voters, then the selected committee has to represent all of voters in at least the same proportion. This property is a way of selecting a committee that represents completely all of voters when such a committee exists. The usual voting rules in this context do not satisfy this condition. 相似文献
102.
José Antonio Climent Hernández Luis Fernando Hoyos Reyes Domingo Rodríguez Benavides 《Contaduría y Administración》2017,62(5):1501-1522
This research work analyzes the yields of the exchange rate parities of the American dollar, Canadian dollar, Euro, and Yen; estimates the basic statistics and the α-stables; carries out the Kolmogorov–Smirnov, Anderson–Darling, and Lilliefors goodness of fit tests; estimates the self-similar exponents and carries out the t and F tests, ruling out that the series of parities are multifractal. It also estimates the confidence intervals of the exchange rate parities and concludes that the estimated α-stable distributions are more efficient than the Gaussian distribution to quantify the risks of the market, and that the series are self-similar. Through the ? index, we can infer the risk of the events, indicating that the parities are anti-persistent and thus have short-term memory, mean reversion, and a negative correlation with the high risk in the short and medium term. The estimation and validation of the α-stable distributions and the self-similar exponent are important in the evaluation and creation of innovative investment instruments through financial engineering, risk administration, and the evaluation of derived products. 相似文献
103.
104.
The goal of this paper is to analyze the impact of annual earnings announcements on the market through the order flow data in addition to the usual transaction data. In this respect, examining order flow data can potentially reveal valuable information that is not available from transaction data. In fact, the data allow us to test hypotheses about asymmetric information and investor behavior and to test if the behavior varies with investor sophistication. In addition, the paper tries to identify the determinants of the impact on a firm's value using assumptions about investor behavior. 相似文献
105.
106.
Sandra De Iaco Donato Posa Claudia Cappello Sabrina Maggio 《Revue internationale de statistique》2021,89(1):36-53
The concepts of isotropy/anisotropy and separability/non‐separability of a covariance function are strictly related. If a covariance function is separable, it cannot be isotropic or geometrically anisotropic, except for the Gaussian covariance function, which is the only model both separable and isotropic. In this paper, some interesting results concerning the Gaussian covariance model and its properties related to isotropy and separability are given, and moreover, some examples are provided. Finally, a discussion on asymmetric models, with Gaussian marginals, is furnished and the strictly positive definiteness condition is discussed. 相似文献
107.
Factor models have been applied extensively for forecasting when high‐dimensional datasets are available. In this case, the number of variables can be very large. For instance, usual dynamic factor models in central banks handle over 100 variables. However, there is a growing body of literature indicating that more variables do not necessarily lead to estimated factors with lower uncertainty or better forecasting results. This paper investigates the usefulness of partial least squares techniques that take into account the variable to be forecast when reducing the dimension of the problem from a large number of variables to a smaller number of factors. We propose different approaches of dynamic sparse partial least squares as a means of improving forecast efficiency by simultaneously taking into account the variable forecast while forming an informative subset of predictors, instead of using all the available ones to extract the factors. We use the well‐known Stock and Watson database to check the forecasting performance of our approach. The proposed dynamic sparse models show good performance in improving efficiency compared to widely used factor methods in macroeconomic forecasting. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
108.
Mónica Correa‐López Agustín García‐Serrador Cristina Mingorance‐Arnáiz 《Oxford bulletin of economics and statistics》2014,76(4):484-509
We empirically analyze the impact of product market competition on the responsiveness of inflation to macroeconomic imbalances. If competition is high the response of inflation to lagged inflation, unemployment and import prices is reduced, while inflation is more responsive to changes in productivity growth in countries in which competition is above the OECD average. Given the (‘good luck’) macroeconomic trajectories of the 1990s–2000s, the structural reforms that made goods markets more competitive improved the ability of OECD economies to smooth (dis)inflationary shocks, while changes in the monetary policy framework had a modest role in taming inflation during the Great Moderation. 相似文献
109.
This paper explores the distinctive deployment of resources and capabilities by subsidiaries in order to develop an intermediate role within the MNC. Based on the regional management perspective, we focus on a specific intermediate role—the springboard subsidiary—that helps overcome the liability of inter-regional foreignness. Our results, which are based on a dataset covering 188 subsidiaries, show that the probability of taking on this role is contingent upon experiential knowledge about the target region, as well as a rich knowledge base derived from a wide range of activities and a broad geographical scope. Our findings also show that possession of slack resources does not necessarily mean that a subsidiary will take on this role, as such slack must be combined with experiential knowledge. This paper serves as a first step in helping MNCs plan resource allocation to handle inter-regional expansion. 相似文献
110.