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31.
    
This paper considers three ratio estimators of the population mean using known correlation coefficient between the study and auxiliary variables in simple random sample when some sample observations are missing. The suggested estimators are compared with the estimators of Singh and Horn (Metrika 51:267–276, 2000), Singh and Deo (Stat Pap 44:555–579, 2003) and Kadilar and Cingi (Commun Stat Theory Methods 37:2226–2236, 2008). They are compared with other imputation estimators based on the mean or a ratio. It is found that the suggested estimators are approximately unbiased for the population mean. Also, it turns out that the suggested estimators perform well when compared with the other estimators considered in this study.  相似文献   
32.
This paper uses a conditional performance measure to test whether real estate investment trust (REIT) managers announcing stock repurchases have private information about their firms' prospects. We use stock price to condition for public information and measure the managers' implied private information by the covariance between repurchase size and subsequent stock payoffs (or operating performance). Results show that managers have private information but mostly with respect to long-term as opposed to near-term payoffs. We also find that repurchase size is positively related to a stock's idiosyncratic return volatility, perhaps because noisy stocks deviate farther from fundamental value, offering informed managers larger profit potential. JEL Classification G12 G14 G35  相似文献   
33.
    
We examine stock returns of firms with international exposure. Our empirical work relies on Campbell's variance decomposition framework. Not surprisingly, we find that the volatility of discount rate and cash flow news increase with the degree of international exposure. As firms globalize, the cash flow effect is good news, while the discount rate effect amounts to bad news. The surprising result is that the covariance between the news terms increases with international exposure. This finding provides indirect evidence for the proposition that foreign exchange (FX) risk is a priced factor in the cross‐section of risk‐adjusted expected returns. JEL Classifications: G12, G15; EFM Classification Code: 330  相似文献   
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35.
Empirical studies investigating the relationship between productivity performance and labor market rigidity have generated a negative result. In this paper we try to provide a theoretical explanation for this empirical result. In doing so, we construct a no-shirking model of innovation-based growth and investigate the steady-state impact of a set of active labor market policies aimed at reducing labor market rigidity and knowledge mismatch generated by innovations. We find that, while enhancing job finding activity definitively improves the equilibrium growth-unemployment mix of the economy, reducing the knowledge mismatch of innovation through active measures is less effective in reducing the equilibrium unemployment and improving growth.  相似文献   
36.
  总被引:1,自引:0,他引:1  
This study investigates the long-horizon performance of open-market stock repurchases for real estate investment trusts (REITs). We develop a new methodology to model the autocorrelation of monthly returns into long-horizon buy-and-hold abnormal return estimators. Serial correlation can introduce bias (autocorrelation bias) because the bid-ask bounce may affect monthly returns for sample firms and non-sample firms in a different fashion. Previous long-horizon event studies have overlooked this source of bias. There is compelling evidence that the market underreacts to the stock repurchase announcements. The evidence holds for different measures of the variance and the effects of cross-correlation of abnormal returns. Results are also robust to the traditional buy-and-hold abnormal return and the wealth relative estimators. We investigate the nature of the underreaction and find strong support for the undervaluation hypothesis.  相似文献   
37.
The idea of this work arises from the analysis of the researches developed in the literature on topic of ownership and control that are mostly based on threshold of ownership stake to determine control equal for all companies and, in most cases, not supported by theoretical arguments and empirical evidences. In fact, the aim of this paper is to build a new method of determining the threshold of ownership stake that allows the shareholder to exercise control. In particular, this survey uses all Italian listed companies as reference, and the minutes of the Ordinary and Extraordinary General Meetings of shareholders, in 2009-2012, as database. The topic can be enriched with further and future researches aiming to adapt this new method in a cross-country investigation and so to identify the different threshold for the countries, on the basis of the different national laws regarding the ownership stakes that affect the control.  相似文献   
38.
This study analyses the value relevance of the different components of the earnings figure that appear in the Spanish profit and loss account in order to determine the preferred level of disaggregation by investors. It is considered that the disaggregation may help to evaluate the earnings quality; that is, its predictive ability about future earnings. We use a valuation model based on Ohlson (1995), which models firm value as a function of book value of equity and earnings, adding the earnings components to determine whether they provide incremental price-relevant information beyond aggregate earnings. In addition, we allow the parameters to vary under some firm-specific circumstances. Our results support the usefulness of the earnings decomposition for valuation purposes, resting primarily on the disclosure of the corporation tax, particularly for either small companies, or with a high-risk profile or with low persistence of earnings. It seems that neither financial profit nor extraordinary earnings have additional information content over the bottom-line figure, which is consistent with the IASC's position on ordinary versus extraordinary items.  相似文献   
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40.
  总被引:2,自引:0,他引:2  
The set of real properties sold during a given period of time may be subdivided into several subsets comprising those properties that sold only once, only twice, and three or more times. The major reason for subdividing the sample is to allow estimation of residential price indices by the repeat-sales methodology. The purpose of this paper is to compare price indices estimated with the repeat subsample to indices based on the entire sample.
Our data for five metropolitan areas indicate that cumulative price trends for the repeat subsamples can differ from the full samples over periods ranging from two to ten quarters. While short-term price trends can differ widely, there are no systematic differences among the samples over periods of three years or more. The data indicate that arbitrage typically forces prices for the repeat sample to grow at the same rate as those for the full sample. Whether this would be the case in areas experiencing greater disequilibrium than our towns in the Hartford area is uncertain.  相似文献   
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