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51.
We present a dynamic model of factor demands based on expected discounted costs minimization. While making only very mild assumptions on expectations and technology, we are able to establish a duality relationship between contemporary factor demands and the technology, and we provide formula for easily recovering marginal products, returns to scale, and technological change from estimated factor demands. Parametrization and implementation are illustrated in a detailed example. 相似文献
52.
53.
税务机关可以对纳税人实施调账检查,但必须在3个月内完整退还调取的所有资料。如果部分应作为证据的资料没有退还,是否违反了这一规定?税务机关已做出的税务处理及处罚决定是否有效?碰到类似问题应如何处理?本文通过案例进行了分析。 相似文献
54.
This paper shows that the surplus consumption ratio, specified by Campbell and Cochrane [1999. Journal of Political Economy 107, 205–251], is a good predictor of excess returns at long horizons. We also provide empirical evidence that this variable captures a component of expected returns, not explained by the proxies for the consumption to wealth ratio, cay and cdy, proposed by Lettau and Ludvigson [2001a. Journal of Finance 56, 815–849; 2001b. Journal of Political Economy 109, 1238–1286; 2005. Journal of Financial Economics 76, 583–626]. Moreover, used as a conditioning information for the Consumption based Asset Pricing Model (C)CAPM, the resulting linear model helps to explain for the variation in average returns across the Fama–French (25) portfolios sorted by size and book-to-market characteristics. 相似文献
55.
近年来,我国出口商品遭退运事件频繁发生,对出口企业造成严重影响。本文详细分析了出口商品退运的原因,并提出了具体的应对策略。 相似文献
56.
Evaluating value at risk (VaR) for a firm’s returns during periods of financial turmoil is a challenging task because of the high volatility in the market. We propose estimating conditional VaR and expected shortfall (ES) for a given firm’s returns using quantile regression with cross-sectional (CSQR) data about other firms operating in the same market. An evaluation using US market data between 2000 and 2020 shows that our approach has certain advantages over a CAViaR model. Identification of low-risk firms and a reduction in computing times are additional advantages of the new method described. 相似文献
57.
基于支付清算安排对中央银行货币政策预微调机制的实证研究 总被引:1,自引:1,他引:0
2011年11月16日,中国人民银行发布《2011年第三季度中国货币政策执行报告》(以下简称《报告》)指出,下阶段央行将继续实施稳健货币政策,同时密切监测国内外经济金融形势发展变化,把握好政策的力度和节奏,适时适度进行预调微调。那么,如何理解货币政策的预微调机制,支付清算系统作为金融市场的核心基础设施和资金汇划的主干道,是否能够通过应对流动性风险的清算安排获取预微调机制的参考信息。本文将对此进行研究分析。 相似文献
58.
Roope Uusitalo 《Labour economics》1999,6(4):201
This study presents estimates of the return to education in Finland using an individual-level data set that also includes ability measures and information on family background. It is found that ability test scores have a strong effect on the choice of education and on subsequent earnings. Estimating the return to education with no information on ability leads to an upward bias in the estimates. However, this bias is more than offset by a downward bias caused by endogeneity or measurement error. Instrumental variables estimates that utilize family background variables as instruments produce estimates of the return to schooling that are approximately 60% higher than the least squares estimates. 相似文献
59.
Moshe Buchinsky 《Empirical Economics》2001,26(1):87-113
This study uses quantile regression techniques to analyze changes in the returns to education for women. The data used is
the March Current Population Survey for the years 1968, 1973, 1979, 1986 and 1990. The first step in estimating the single
(linear) index selection equation uses Ichimura's (1993) semiparametric procedure. To correct for an unknown form of a sample
selection bias in the quantile regression, the second step incorporates a nonparametric method, using an idea similar to one
developed by Heckman (1980) and Newey (1991) for mean regression, and Buchinsky (1998) for quantile regression.
The results show that: (a) the returns to education increased enormously for the younger cohorts, but very little for the
older cohorts; (b) in general the returns are higher at the lower quantiles in the beginning of the sample period and higher
at the higher quantiles by the end of the sample period; (c) there is a significant sample selection bias for all age groups
at almost all quantiles; (d) toward the end of the sample period there is a significant convergence of the returns at the
various quantiles, especially for the younger cohorts and age groups; and (e) the semiparametric estimates of the selection
equation are considerably different from those obtained for a parametric probit model. 相似文献
60.
Madhusudan Karmakar 《Review of Financial Economics》2013,22(3):79-85
The purpose of the study is to estimate tail-related risk measures using extreme value theory (EVT) in the Indian stock market. The study employs a two stage approach of conditional EVT originally proposed by McNeil and Frey (2000) to estimate dynamic Value at Risk (VaR) and expected shortfall (ES). The dynamic risk measures have been estimated for different percentiles for negative and positive returns. The estimates of risk measures computed under different quantile levels exhibit strong stability across a range of the selected thresholds, implying the accuracy and reliability of the estimated quantile based risk measures. 相似文献