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581.
582.
Profit Maximizing in Auctions of Public Goods 总被引:1,自引:0,他引:1
A profit-maximizing auctioneer can provide a public good to a group of agents. Each group member has a private value for the good being provided to the group. We investigate an auction mechanism where the auctioneer provides the good to the group only if the sum of their bids exceeds a reserve price declared previously by the auctioneer. For the two-bidder case with private values drawn from a uniform distribution we characterize the continuously differentiable symmetric equilibrium bidding functions for the agents, and we find the optimal reserve price for the auctioneer when such functions are used by the bidders. We also examine another interesting family of equilibrium bidding functions for this case, with a discrete number of possible bids, and show the relation (in the limit) to the differentiable bidding functions. 相似文献
583.
Geographic concentration of innovative activities in Germany 总被引:2,自引:0,他引:2
The geographic concentration of industries has attracted much attention in recent economic and geographic literature. One mechanism employed to explain the emergence and comparative advantage of industrial agglomerations is based on the relationship between industrial agglomeration and local knowledge production and diffusion, and the resulting innovation activities. This paper analyses this relationship by identifying geographic concentrations of innovation activities and examining different causes for the emergence of these concentrations. The paper applies different concentration measures to patent data for German regions. We analyse 43 technological fields separately to identify which of these technologies tend to cluster in geographic space. The results are discussed in light of theoretical predictions of why specific technological fields concentrate while others do not. These explanations include the concentration of industrial activities, the role of dominant firms, dependence on scientific knowledge, and local interactions. 相似文献
584.
The article investigates the effect of taxes and social premiums on female labour supply and household income. A comparison is made between labour supply and household income between the Netherlands and the Federal Republic of Germany in 1992. A discrete choice model for labour supply is used in which taxes and social premiums are implicitly incorporated. As male labour supply is highly inelastic an individual, male chauvinist model is used. The estimated models are used to simulate the effect of the differences in the tax and social premium system on the differences in labour supply and income between both countries. The results indicate that labour force participation is higher the more individualized the system. The German system leads to a lower tax burden compared to the Dutch system. It is concluded that differences in the tax and social premium system between both countries have hardly any influence on the differences in the inequality of net household labour income. There is evidence that the German system leads to a slightly more unequal distribution of household income. It is also concluded that although the tax and social premium system does influence labour supply and income, it can be doubted whether these effects are substantial. 相似文献
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586.
This paper analyzes the existence of flights from stocks to bonds and vice versa. We propose a definition and a test for flight-to-quality, flight-from-quality and cross-asset contagion and examine their characteristics and effects for the financial system. The empirical analysis for eight developed countries including the US, the UK, Germany and Japan shows that flights exist and are a common feature in many crises episodes. Our findings also reveal that flights are not merely country-specific events but occur simultaneously across countries. This indicates that there is a link between the occurrence of flights and cross-country contagion. Moreover, we show that flights enhance the resiliency of the financial markets by providing diversification benefits in times when they are needed most. 相似文献
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588.
Wirtschaftsdienst - Als Reaktion auf die Corona-Krise haben die Notenbanken des Eurosystems ihre Anleihekäufe im Rahmen des APP-Programms weiter aufgestockt und um das PEPP-Programm erweitert.... 相似文献
589.
The buoyant research interest in the constructs emotional intelligence (EI) and transformational leadership (TFL) is a testament to the crucial role of emotional skills at work. EI is often described as an antecedent of TFL, and several empirical studies report a positive relationship between these variables. On closer inspection, however, there may be methodological factors, such as common method variance, that potentially undermine the validity of findings. Using a multi‐rater assessment (N = 227), this study sought to overcome the problem of method variance, whilst at the same time evaluate its potential presence by comparing same‐source and non‐same‐source data. Findings suggest that, when using a strong methodological design, no relationship between EI and TFL is found. Thus, these findings renew the demand for scientific rigour in the design of studies to enhance their validity. The theoretical ramifications of this study are such that management scholars need to re‐conceptualize the relationship between EI and TFL. 相似文献
590.
Prof. Dr. Andreas Fink Prof. Dr. Natalia Kliewer Prof. Dr. Dirk Mattfeld Prof. Dr. Lars Mönch Prof. Dr. Franz Rothlauf Prof. Dr. Guido Schryen Prof. Dr. Leena Suhl Prof. Dr. Stefan Voß 《Business & Information Systems Engineering》2014,6(1):17-24
In this paper, we sketch some of the challenges that should be addressed in future research efforts for model-based decision support in manufacturing and service networks. This includes integration issues, taking into account the autonomy of the decision-making entities in face of information asymmetry, the modeling of preferences of the decision makers, efficiently determining robust solutions, i.e. solutions that are insensitive with respect to changes in the problem data, and a reduction of the time needed for model building and usage. The problem solution cycle includes problem analysis, the design of appropriate algorithms and their performance assessment. We are interested in a prototypical integration of the proposed methods within application systems, which can be followed up with field tests of the extended application systems. We argue that the described research agenda requires the interdisciplinary collaboration of business and information systems engineering researchers with colleagues from management science, computer science, and operations research. In addition, we present some exemplifying, illustrative examples of relevant research results. 相似文献