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排序方式: 共有88条查询结果,搜索用时 15 毫秒
1.
Francesc Marmol 《Oxford bulletin of economics and statistics》1996,58(3):525-536
Abstract Herein we develop an analytical study of the asymptotic distributions obtained when we run linear regressions in the levels of stochastically independent integrated time series when the orders of integration of the dependent and independent variables are different. These theoretical findings largely explain the Monte Carlo results recently reported in Banerjee et al. (1993). 相似文献
2.
David Matesanz Benno Torgler Germán Dabat Guillermo J. Ortega 《Agricultural Economics》2014,45(Z1):13-21
This article analyses co‐movements in a wide group of commodity prices during the time period 1992–2010. Our methodological approach is based on the correlation matrix and the networks inside. Through this approach we are able to summarize global interaction and interdependence, capturing the existing heterogeneity in the degrees of synchronization between commodity prices. Our results produce two main findings: (a) we do not observe a persistent increase in the degree of co‐movement of the commodity prices in our time sample, however from mid‐2008 to the end of 2009 co‐movements almost doubled when compared with the average correlation; (b) we observe three groups of commodities which have exhibited similar price dynamics (metals, oil and grains, and oilseeds) and which have increased their degree of co‐movement during the sampled period. 相似文献
3.
The reforms of the banking sector in China conducted so far have been seeking to accomplish, simultaneously, two conflicting goals. On the one hand, the objective was to prepare Chinese banks for international competition and put them at the pace with the transformations observed in its overall economy. On the other, there is a social-driven agenda concerning employment and regional inequalities. Using principal component analysis, this article explores the impact of the ongoing reforms in the Chinese banking sector on the performance of individual banks. The results show that despite identical regulation, business practices can be dissimilar at the individual level. Taken collectively, the results also show the increasing influence of Western management standards in the Chinese banking sector. 相似文献
4.
5.
Faced with the threat of climate change, there is a challenge to promote more environmentally friendly consumption patterns. This work seeks to unearth psychographic and socio‐demographic factors that could trigger environmentally motivated reductions in consumption. The context of empirical investigation is the European Union (i.e., a large‐scale sample of European citizens), with a focus on two key types of environmentally motivated consumption reduction: domestic and “out‐of‐home” (purchasing) activities. The findings show the interrelated effects of environmental knowledge and ecological motivations (in both aggregated and disaggregated forms) on positive and negative environmental attitudes, which in turn influence consumption reduction. There is also evidence of significant moderating influences of perceived environmental threat, gender, age, education, and country value orientation—particularly on “environmental knowledge” links. The findings reported here contribute to theory and practice toward environmental sustainability. 相似文献
6.
The increasing share of imported food in the United States, coupled with highly publicized incidents of food contamination and adulteration in Asia, particularly China, is posing new challenges for consumers and food safety regulators. In this study, we focus on imported shrimp and tilapia, to evaluate consumer willingness‐to‐pay (WTP) for enhanced food safety, use of antibiotics, and eco‐friendly environmental practices. Results show that U.S. consumers were willing‐to‐pay more for enhanced food safety, followed by the use of no antibiotics and environmental friendly production practices. American consumers in our sample were found to have a higher WTP for domestic products and placed more trust on U.S. government verification of product attributes followed by third‐party certification. 相似文献
7.
How do very open economies adjust to large immigration flows? Evidence from Spanish regions 总被引:1,自引:0,他引:1
We study the labor market effects of the large immigration wave in Spain between 2001 and 2006. In this period the foreign-born share increased from 6% to 13%, with a total inflow exceeding three million immigrants. Our analysis exploits the large variation in the size of immigration flows across Spain's regions. To identify causal effects, we take advantage of the fact that immigrants' location choices were strongly driven by early migrant settlements that arrived during the 1980s. We find that the relatively unskilled migration inflows did not affect the wages or employment rates of unskilled workers in the receiving regions. The growth of the unskilled labor force was absorbed mostly through increases in total employment. This increase did not originate in changes in the composition of regional output, but was instead driven by changes in skill intensity at the industry level. Regions that received a large inflow of unskilled immigrants increased the intensity of use of the now more abundant (unskilled) labor, relative to other regions. The key industries responsible for this absorption were retail, construction, hotels and restaurants and domestic services. These results are inconsistent with standard open economy models but are in line with recent empirical studies for the United States and Germany. 相似文献
8.
Francesc Dilmé 《International Economic Review》2016,57(4):1261-1278
This article investigates how helping behavior can be sustained in large societies in the presence of agents who never help. I consider a game with many players who are anonymously and randomly matched every period in pairs. Within each match, one player may provide socially optimal but individually costly help to the other player. I introduce and characterize the class of “linear equilibria” in which, unlike equilibria used in the previous literature, there is help even in the presence of behavioral players. Such equilibria are close to a tit‐for‐tat strategy and feature smooth help dynamics when the society is large. 相似文献
9.
David Matesanz Gomez Hernan J. Ferrari Benno Torgler Guillermo J. Ortega 《Applied economics》2017,49(10):972-986
In this article, we use a correlation matrix and its internal networks to analyse business cycle synchronization across Europe since 2000. This methodology allows us to summarize individual country interactions and co-movements while also capturing the existing heterogeneity of connectivity within the European economic system. Our results indicate that synchronization of the euro zone countries remained stable from 1999 until the current financial crisis, after which co-movements increased sharply and synchronization rose to the highest in the time sample. By endogenously identifying clusters of countries with close connections in their business cycle, we also refute the commonly accepted notion of identifiable core and peripheral euro zone countries. 相似文献
10.
Juan-Pablo Ortega 《Quantitative Finance》2013,13(7):1095-1110
We apply a quadratic hedging scheme developed by Föllmer, Schweizer, and Sondermann to European contingent products whose underlying asset is modeled using a GARCH process and show that local risk-minimizing strategies with respect to the physical measure do exist, even though an associated minimal martingale measure is only available in the presence of bounded innovations. More importantly, since those local risk-minimizing strategies are in general convoluted and difficult to evaluate, we introduce Girsanov-like risk-neutral measures for the log-prices that yield more tractable and useful results. Regarding this subject, we focus on GARCH time series models with Gaussian innovations and we provide specific sufficient conditions concerning the finiteness of the kurtosis, under which those martingale measures are appropriate in the context of quadratic hedging. When this equivalent martingale measure is adapted to the price representation we are able to recover the classical pricing formulas of Duan and Heston and Nandi, as well as hedging schemes that improve the performance of those proposed in the literature. 相似文献