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71.
Pierre Devolder 《Scandinavian actuarial journal》2017,2017(4):287-318
The purpose of this paper is twofold. Firstly, we consider different risk measures in order to determine the solvency capital requirement of a pension fund. Secondly, we illustrate the impact of the time horizon of long-term guarantee products on these capital. We consider a financial market modelled by a common Black–Scholes–Merton model. We neglect the mortality and underwriting risks by assuming that the pension fund is fully hedged against these risks, which allows us to keep understandable and tractable formulæ (the longevity risk will be a part of future researches). A portfolio is built in this market according to different strategies and the pension fund offers a fixed guaranteed rate on a certain time horizon. We begin with well-known static risk measures (value at risk and conditional tail expectation measures) and then we consider their natural dynamic generalization. In order to be time consistent, we consider their iterated versions by a backward iterations scheme. Within the dynamic setting, we show that solvency capital can be expensive and that attention must be paid to the safety level considered. 相似文献
72.
This paper studies a conditional block grant that Dutch municipalities receive for welfare-to-work programs. Many municipalities do not fully use this grant, although programs are beneficial for them. We argue that municipalities incur expenses to use the grant. If these costs are substantial, then it is optimal not to fully use the grant. Based on municipality-specific data on grants and actual expenditures, we estimate that municipalities have to add about 90 cents from their own resources to spend 1 euro of the grant. As a result, the conditional block grant is de facto a closed-ended matching grant. 相似文献
73.
Héléna Beltran-Lopez Pierre Giot Joachim Grammig 《Financial Markets and Portfolio Management》2009,23(3):209-242
This paper uses data from one of the most important European stock markets and shows that, in line with predictions from theoretical
market microstructure, a small number of latent factors captures most of the variation in stock specific order books. We show
that these order book commonalities are much stronger than liquidity commonality across stocks. The result that bid and ask
side as well as the visible and hidden parts of the order book exhibit quite specific dynamics is interpreted as evidence
that open order book markets attract a heterogeneous trader population in terms of asset valuations and impatience. Quantifying
the informational content of the extracted factors with respect to the evolution of the asset price, we find that the factor
information shares are highest (about 10%) for less frequently traded stocks. We also show that the informational content
of hidden orders is limited.
相似文献
Joachim GrammigEmail: |
74.
Pierre Thomas Léger 《The Canadian journal of economics》2000,33(2):564-586
As a result of rising health care costs, many countries, including the United States, have turned to managed care organizations and the use of capitation payment systems. Although this type of system is an effective mechanism for reducing excessive utilization of health care, it may lead to the underprovision of medical services. In this paper propensity to underprovide medical services in a prepayment system as well as the effects of auditing/monitoring on physician behaviour and patient well-being are examined. Conditions are found under which managed care yields more efficient outcomes than traditional fee-for-service care.
Suite à la croissance importante des coûts des soins, plusieurs pays, y compris les Etats Unis, ont commencéà se tourner vers des organisations spécialisées pour gérer la prestation des services et à faire usage de systèmes de rémunération per capita. Même si ce genre de système est un mécanisme efficace pour réduire l'usage excessif des service de santé, il peut entraîner une offre déficiente de services médicaux. Ce mémoire examine la propensitéà fournir moins de services dans un système de pré-paiement. On examine aussi les effets de la surveillance et de la vérification sur le comportement des médecins et sur le bien-être des patients. On met en lumière les conditions qui assurent que les soins fournis dans un tel système donneront de meilleurs résultats que la rémunération à l'acte. 相似文献
Suite à la croissance importante des coûts des soins, plusieurs pays, y compris les Etats Unis, ont commencéà se tourner vers des organisations spécialisées pour gérer la prestation des services et à faire usage de systèmes de rémunération per capita. Même si ce genre de système est un mécanisme efficace pour réduire l'usage excessif des service de santé, il peut entraîner une offre déficiente de services médicaux. Ce mémoire examine la propensitéà fournir moins de services dans un système de pré-paiement. On examine aussi les effets de la surveillance et de la vérification sur le comportement des médecins et sur le bien-être des patients. On met en lumière les conditions qui assurent que les soins fournis dans un tel système donneront de meilleurs résultats que la rémunération à l'acte. 相似文献
75.
This paper re-examines the role of high employment budget expenditures (fiscal policy) in the St. Louis expenditure equation by using spectral analysis and the spectral estimates of a two-sided distributed lag model. The analysis is undertaken with quarterly U.S. data from 1947:1 to 1984:IV in the rate of change form. A salient conclusion is that fiscal policy has statistically significant partial coherences with (nominal) income, with the latter leading the former over the business cycle. We find that income is jointly related to lead terms of fiscal policy in a two-sided distributed lag model. Some explanations for these results are provided. 相似文献
76.
77.
78.
We analyze the role of knowhow acquisition in the formationand duration of joint ventures. Two parties become partnersin a joint venture to benefit from each others knowhow.Joint operations provide each party with the opportunity toacquire part of its partners knowhow. A partysincreased knowhow provides the impetus for the dissolution ofthe joint venture. We characterize the conditions under whichdissolution takes place, identify the party that buys out itspartner, determine the time to dissolution, establish its comparativestatics, and examine the implications of knowledge acquisitionfor the desirability of joint venture formation. (JEL code:G34) 相似文献
79.
Intraday Value at Risk (IVaR) using tick-by-tick data with application to the Toronto Stock Exchange 总被引:1,自引:0,他引:1
This paper investigates the use of tick-by-tick data for intraday market risk measurement. We propose a method to compute an Intraday Value at Risk based on irregularly spaced high-frequency data and an intraday Monte Carlo simulation. A log-ACD–ARMA–EGARCH model is used to specify the joint density of the marked point process of durations and high-frequency returns. We apply our methodology to transaction data for three stocks actively traded on the Toronto Stock Exchange. Compared to traditional techniques applied to intraday data, our methodology has two main advantages. First, our risk measure has a higher informational content as it takes into account all observations. On the total risk measure, our method allows for distinguishing the effect of random trade durations from the effect of random returns, and for analyzing the interaction between these factors. Thus, we find that the information contained in the time between transactions is relevant to risk analysis, which is consistent with predictions from asymmetric-information models in the market microstructure literature. Second, once the model has been estimated, the IVaR can be computed by any trader for any time horizon based on the same information and with no need of sampling the data and estimating the model again when the horizon changes. Backtesting results show that our approach constitutes reliable means of measuring intraday risk for traders who are very active in the market. 相似文献
80.
Simon Pierre Sigu Salma Karray 《Canadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l\u0027Administration》2007,24(2):80-93
We provide a framework for setting regular prices and using promotional discounts in a duopoly where long‐term promotional effects are present and the firms' pricing and promotional strategies are common knowledge (e.g., as in online markets). We show that at equilibrium, the two firms may not promote and instead adopt an Everyday Low Price (EDLP) strategy. Consumers' tendency to stockpile promoted products, the level of brand loyalty and product differentiation, and the possibility of a postpromotional sales increase critically influence regular prices, price discount rates, and profits. Under some conditions consumer stockpiling intensifies promotional competition and reduces firms' profits while the possibility of attracting new consumers reduces the need to heavily promote and ensures better profits. Managerial implications are discussed. Copyright © 2007 ASAC. Published by John Wiley & Sons, Ltd. 相似文献