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191.
Sovereign and bank dependence in the eurozone: A multi-scale approach using wavelet-network analysis
This study establishes time–frequency networks of sovereign and bank contagion in the eurozone over the period 2009–2021. By applying discrete wavelet transformation, daily CDS premia of sovereigns and systemically important banks are decomposed into multi-horizon components to specify directed and dependence-weighted networks. Dynamic analysis shows that the network connectivity and the strength of the dependencies are significantly lower after the introduction of the European Banking Union in 2014. While the strength effect is pronounced across all time horizons, the network connectivity only reduces in the short and medium run. This provides evidence that the new regulatory framework promotes financial stability but is more effective in the short and medium horizons. The consideration of the COVID-19 pandemic as a real-life stress test confirms these findings as the strength of the dependencies keeps at significantly lower levels. 相似文献
192.
How much the largest worldwide companies, belonging to different sectors of the economy, are suffering from the pandemic? Are economic relations among them changing? In this paper, we address such issues by analyzing the top 50 S&P companies by means of market and textual data. Our work proposes a network analysis model that combines such two types of information to highlight the connections among companies with the purpose of investigating the relationships before and during the pandemic crisis. In doing so, we leverage a large amount of textual data through the employment of a sentiment score which is coupled with standard market data. Our results show that the COVID-19 pandemic has largely affected the US productive system, however differently sector by sector and with more impact during the second wave compared to the first. 相似文献
193.
Sandra Rousseau 《Journal of Regulatory Economics》2007,32(1):17-36
Environmental inspection agencies have limited resources. A natural response to this shortage of resources is targeting and
this targeting policy leads to higher compliance than random inspections. This paper uses individual inspection data on the
inspection policy of the environmental agency for the textile industry in Flanders (Belgium). We distinguish between three
types of inspections and use a survival model to show that the environmental agency inspects firms in a non-random way. Even
though the agency solves most environmental problems, it can increase compliance by using the deterrence effect of more stringent
inspections and sanctions.
相似文献
194.
David Pearce 《Environmental and Resource Economics》2007,37(1):313-333
This paper addresses from an economic perspective the issue of global biodiversity conservation. It challenges the perception
that the world really cares a great deal about biodiversity and is prepared to pay the full cost of maintaining this stock
of natural capital. Despite the existence of a plethora of international agreements there still seems to be a global ‘deficit
of care’ surrounding efforts to combat challenges such as those posed by global warming and biodiversity conservation. More
light can be thrown on the degree of care by measuring both the actual expenditures and the stated willingness to pay for
biodiversity conservation. However, actual expenditures are much lower than willingness to pay estimates recorded in the published
literature. Using the criteria that the ‘right’ amount of conservation effort is one where the marginal economic benefits
from conservation just equal the marginal costs of conservation, the paper explores the biodiversity conservation conundrum
and concluded that, on the available evidence, the world does not care too much about this natural capital stock and bequests
to future generations.
An erratum to this article can be found at 相似文献
195.
Internet Protocol Television (IPTV), the convergence services of television and Internet, is being rapidly developed around the world. The advent of digital technologies has changed the convergence market dramatically with the wide diffusion of the convergent services. Using the Technology Acceptance Model as a conceptual framework and method of logistic regression, this research analyzes the demand for IPTV by drawing data from 452 consumers. Individuals' responses to questions about whether they accept IPTV are collected and combined with observations of their socio-economic status and intrinsic/extrinsic factors modified from the Technology Acceptance Model. Results of logistic regression show two variables (intrinsic and extrinsic factors) that seem to explain what influences consumer behavior towards adopting IPTV. Overall, the logistic regression model explains over 50% of the variance in the IPTV adoption. The variances shed light on the multi-open platform environment that IPTV will forge. 相似文献
196.
197.
Noisy chaotic dynamics in commodity markets 总被引:2,自引:1,他引:2
Catherine?Kyrtsou Walter C.?LabysEmail author Michel?Terraza 《Empirical Economics》2004,29(3):489-502
The nonlinear testing and modeling of economic and financial time series has increased substantially in recent years, enabling us to better understand market and price behavior, risk and the formation of expectations. Such tests have also been applied to commodity market behavior, providing evidence of heteroskedasticity, chaos, long memory, cyclicity, etc. The present evaluation of futures price behavior confirms that the resulting price movements can be random, suggesting noisy chaotic behavior. Prices could thus follow a mean process that is dynamic chaotic, coupled with a variance that follows a GARCH process. Our conclusion is that models of this type could be constructed to assist in forecasting prices in the short run but not over long run time periods.First version received: June 2001/Final version received: March 2003 相似文献
198.
Kenneth J. Arrow Partha Dasgupta Karl-Göran Mäler 《Environmental and Resource Economics》2003,26(4):647-685
We are interested in three related questions:(1) How should accounting prices be estimated?(2) How should we evaluate policy change in animperfect economy? (3) How can we check whetherintergenerational well-being will be sustainedalong a projected economic programme? We do notpresume that the economy is convex, nor do weassume that the government optimizes on behalfof its citizens. We show that the same set ofaccounting prices should be used both forpolicy evaluation and for assessing whether ornot intergenerational welfare along a giveneconomic path will be sustained. We also showthat a comprehensive measure of wealth,computed in terms of the accounting prices, canbe used as an index for problems (2) and (3)above. The remainder of the paper is concernedwith rules for estimating the accounting pricesof several specific environmental naturalresources, transacted in a few well knowneconomic institutions. 相似文献
199.
广西在大西南出海通道的建设中占有极其重要的地位,本文采用网络模型,按现状与规划路网两种情况,综合考虑陆上距离和去不同方向市场的海上距离,分析了北海(代表广西港口群)、湛江、广州等三条出海通道的三个港。各自的吸引范围。并由此得出了一些有益的结论。 相似文献
200.
Hedonic models and air pollution: Twenty-five years and counting 总被引:2,自引:1,他引:2
This paper reports a meta analysis of how effectively hedonic property models have detected the influence of air pollution on housing prices. Probit estimates are reported describing how data, model specification, and local property market conditions in cities represented in thirty-seven studies influence the ability of hedonic models to uncover negative, statistically significant relationships between housing prices and air pollution measures.Partial support for this research was provided by the Russell Sage Foundation. Thanks are due David Cordray, Heidi Hartman, and Larry Hedges of the Foundation's Meta-Analysis Panel for constructive comments, to Ray Palmquist for suggestions and assistance in assembling the results from his studies, to Rick Freeman and Tom Tietenberg and two anonymous referees for comments on the research, and to Barbara Scott for constructive editing of earlier drafts of this paper. 相似文献