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111.
Francis In Sangbae Kim Vijaya Marisetty Robert Faff 《Review of Quantitative Finance and Accounting》2008,31(1):55-70
We propose a new approach for investigating the performance of managed funds using wavelet analysis and apply it to an Australian
dataset. This method, applied to a multihorizon Sharpe ratio, shows that the wavelet variance at the short scale is higher
than that of the longer scale, implying that an investor with a short investment horizon has to respond to every fluctuation
in the realized returns, while for an investor with a much longer horizon, the long-run risk associated with unknown expected
returns is not as important as the short-run risk. Using multihorizon Sharpe ratios of six groups of managed funds, we find
that none of the fund groups are dominant over all time scales.
相似文献
Robert Faff (Corresponding author)Email: |
112.
113.
Francis W. Ahking Carmelo Giaccotto† Rexford E. Santerre‡ 《The Journal of risk and insurance》2009,76(1):133-157
This article estimates the aggregate demand for private health insurance coverage in the United States using an error correction model for the period 1966–1999. Both short- and long-run price and income elasticities of demand are estimated. The empirical findings indicate that both private insurance enrollment and the completeness of insurance are relatively inelastic with respect to changes in price and income in the short and long run. Moreover, the results suggest that an increase in the number cyclically and frictionally uninsured generates less welfare loss than an increase in the number of structurally uninsured. 相似文献
114.
115.
In this article we report on the design, prototyping and results of a research effort aimed at identifying whether and how trust affects the innovativeness of a partnership between two players. The methodology combined an experiment and two questionnaires. The research aimed to increase our understanding of trust and its impact on the innovative outcome of cooperation and to derive some guidance for economic actors, namely R&D managers and executives who intend to build innovation-oriented relationships with their business partners. Specifically, we investigated the effect of trust on partners' creativity and willingness to invest financially in a joint development. Our results show that more trustful partners invest higher amounts in the alliance, while there seems to be an optimum amount of mutual trust between partners who maximize their joint creativity and innovativeness; if the level of mutual trust is below or above this threshold, their joint creativity seems to increase less or even to decrease. Our findings suggest that joint development projects should always include explicit trust development activities at the beginning of the project, and that the amount of trust in the joint team should be monitored to avoid the negative consequences of excessive trust. 相似文献
116.
E. Kevin Kelloway Lori Francis Matthew Prosser James E. Cameron 《Human Resource Management Review》2010,20(1):18-25
We suggest that counterproductive work behaviors can be viewed as a form of protest in which organizational members express dissatisfaction with or attempt to resolve injustice within the organization. Incorporating the three key predictors (injustice, identity and instrumentality, [Klandermans, B., (1997). The social psychology of protest. Oxford: Blackwell.]) from the protest literature leads us to propose that counterproductive behaviors can be both individual and collective. Crossing this dimension with concepts of organizational and individual deviance leads to a fourfold classification of counterproductive work behaviors. 相似文献
117.
Jamil M. Beg Thomas D. Anderson Kevin Francis Lisa M. Meckley David Fitzhenry Todd Foster 《Journal of medical economics》2017,20(1):45-53
Objective: To provide an estimate of the annual number of super-refractory status epilepticus (SRSE) cases in the US and to evaluate utilization of hospital resources by these patients.Methods: The Premier Hospital Database was utilized to estimate the number of SRSE cases based on hospital discharges during 2012. Discharges were classified as SRSE cases based on an algorithm using seizure-related International Classification of Diseases-9 (ICD-9) codes, Intensive Care Unit (ICU) length of stay (LOS), and treatment protocols (e.g. benzodiazepines, anti-epileptic drugs (AEDs), and ventilator use). Secondary analyses were conducted using more restrictive algorithms for SRSE.Results: A total of 6,325 hospital discharges were classified as SRSE cases from a total of 5,300,000 hospital discharges. Applying a weighting based on hospital characteristics and 2012?US demographics, this projected to an estimated 41,156 cases of SRSE in the US during 2012, an estimated incidence rate of ~13/100,000 annually for SRSE in the US. Secondary analyses using stricter SRSE algorithms resulted in estimated incidence rates of ~11/100,000 and 8/100,000 annually. The mean LOS for SRSE hospitalizations was 16.5 days (median =11; interquartile range [IQR]?=?6–20), and the mean ICU LOS was 9.3 days (median =6; IQR =3–12). The mean cost of an SRSE hospitalization was $51,247 (median = $33,294; 95% CI = $49,634–$52,861).Limitations: The analysis uses ICD-9 diagnostic codes and claims information, and there are inherent limitations in any methodology based on treatment protocol, which created challenges in distinguishing with complete accuracy between SRSE, RSE, and SE on the basis of care patterns in the database.Conclusion: SRSE is associated with high mortality and morbidity, which place a high burden on healthcare resources. Projections based upon the findings of this study suggest an estimated 25,821–41,959 cases of SRSE may occur in the US each year, but more in-depth studies are required. 相似文献
118.
Francis W. Ahking 《Empirical Economics》2010,39(2):439-456
This paper examines the mean-reverting property of real exchange rates. Earlier studies have generally not been able to reject
the null hypothesis of a unit-root in real exchange rates, especially for the post-Bretton Woods floating period. The results
imply that long-run purchasing power parity does not hold. More recent studies, especially those using panel unit-root tests
or nonlinear time series models, have found more favorable results, however. But the results from these recent studies are
far from conclusive. Consistent individual country time series evidence that supports long-run purchasing power parity continues
to be scarce. In this paper, we test for long memory using (Lo’s in Econometrica 59:1279–1313, 1991) the modified rescaled
range test, and the rescaled variance test of Giraitis et al. (J Econ 112:265–294, 2003a). Our testing procedure provides
a non-parametric alternative to the parametric tests commonly used in this literature. Our data set consists of monthly observations
from April 1973 to April 2001 of the G-6 countries (excluding the US) in the OECD. Using the modified rescaled range test,
we find only 2 cases out of 15 where the null hypothesis of a unit-root with short-term dependence could be rejected in favor
of the alternative hypothesis of long-term dependence and none using the rescaled variance test. Our results therefore do
not provide strong empirical support for the stationarity of real exchange rates. 相似文献
119.
We study the nature of systemic sovereign credit risk using CDS spreads for the U.S. Treasury, individual U.S. states, and major Eurozone countries. Using a multifactor affine framework that allows for both systemic and sovereign-specific credit shocks, we find that there is much less systemic risk among U.S. sovereigns than among Eurozone sovereigns. We find that both U.S. and Eurozone systemic sovereign risk are strongly related to financial market variables. These results provide strong support for the view that systemic sovereign risk has its roots in financial markets rather than in macroeconomic fundamentals. 相似文献
120.
An innovation which bypasses the need for instruments when estimating endogenous treatment effects is identification via conditional second moments. The most general of these approaches is Klein and Vella (J Econom 154:154–164, 2010), which models the conditional variances semiparametrically. While this is attractive, as identification is not reliant on parametric assumptions for variances, the nonparametric aspect of the estimation may discourage practitioners from its use. This paper outlines how the estimator can be implemented parametrically. The use of parametric assumptions is accompanied by a large reduction in computational and programming demands. We illustrate the approach by estimating the return to education using a sample drawn from the National Longitudinal Survey of Youth 1979. Accounting for endogeneity increases the estimate of the return to education from 6.8 to 11.2%. 相似文献