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排序方式: 共有247条查询结果,搜索用时 17 毫秒
31.
Decomposing Granger causality over the spectrum allows us to disentangle potentially different Granger causality relationships over different frequencies. This may yield new and complementary insights compared to traditional versions of Granger causality. In this paper, we compare two existing approaches in the frequency domain, proposed originally by Pierce [Pierce, D. A. (1979). R-squared measures for time series. Journal of the American Statistical Association, 74, 901–910] and Geweke [Geweke, J. (1982). Measurement of linear dependence and feedback between multiple time series. Journal of the American Statistical Association, 77, 304–324], and introduce a new testing procedure for the Pierce spectral Granger causality measure. To provide insights into the relative performance of this test, we study its power properties by means of Monte Carlo simulations. In addition, we apply the methodology in the context of the predictive value of the European production expectation surveys. This predictive content is found to vary widely with the frequency considered, illustrating the usefulness of not restricting oneself to a single overall test statistic. 相似文献
32.
This paper is the first empirical study of banks’ risk management systems based on non-anonymous daily Value-at-Risk (VaR) and profit-and-loss data. Using actual data from the six largest Canadian commercial banks, we uncover evidence that banks exhibit a systematic excess of conservatism in their VaR estimates. The data used in this paper have been extracted from the banks’ annual reports using an innovative Matlab-based data extraction method. Out of the 7354 trading days analyzed in this study, there are only two exceptions, i.e. days when the actual loss exceeds the disclosed VaR, whereas the expected number of exceptions with a 99% VaR is 74. For each sample bank, we extract from historical VaRs a risk-overstatement coefficient, ranging between 19 and 79%. We attribute VaR overstatement to several factors, including extreme cautiousness and underestimation of diversification effects when aggregating VaRs across business lines and/or risk categories. We also discuss the economic and social cost of reporting inflated VaRs. 相似文献
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34.
This paper provides an update on the exchange rate pass-through (ERPT) estimates for 12 euro area (EA) countries. First, based on quarterly data over the 1990–2012 period, the study does not find a significant heterogeneity in the degree of pass-through across the monetary union members, in contrast to previous empirical studies. As the authors use a longer time span for the post-EA era than existing studies, this is not surprising, since the process of monetary union has entailed some convergence towards more stable macroeconomic conditions across EA member states. Second, when assessing the stability of pass-through elasticities, the authors find very weak evidence of a decline around the inception of the euro in 1999. However, their results reveal that a downtrend in ERPT estimates became apparent starting from the beginning of the 1990s. This observed decline was synchronous to the shift towards reduced inflation regimes in their sample of countries. Finally, the authors notice that the distinction between “peripheral” and “core” EA economies in terms of pass-through has significantly decreased over the last two decades. 相似文献
35.
Christophe Destais 《新兴市场金融与贸易》2016,52(10):2253-2266
Central bank currency swaps have emerged as a de facto key feature of the international monetary system, with the US Federal Reserve having extensive recourse to them during the financial crisis, and their exploitation by the People’s Bank of China to help internationalizing the renminbi. Combined with the unlimited and exclusive power of central banks to create money these swaps can match the volatility of international capital flows. However, they have so far not been associated with conditionality, and are more precarious than alternative institutional arrangements. Strictly framing the discretionary use of this tool seems unrealistic but an internationally agreed set of principles would enable a fairer and perhaps more efficient exploitation of this instrument. 相似文献
36.
Christophe Schalck 《Applied economics letters》2016,23(13):921-925
The aim of this paper is to identify tax arbitrage opportunities in the field of rental housing in France and the USA. We conducted tax simulations for investments made in the USA or France. We compared total net rental incomes, capital gains and present investment values based on different tax regimes. Our results show that rental housing in the USA under the Effectively Connected Income classification serves as the best option, as it generates the highest present investment value. We performed several robustness exercises and we showed that our results are strengthened in cases of stronger price appreciation in the USA than in France and in cases of high landlord tax brackets. 相似文献
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38.
Christophe Sohn 《International journal of urban and regional research》2014,38(5):1697-1711
In a globalized urban world, cross‐border metropolises represent a spatial configuration emblematic of the interplay between the space of flows and the space of places. The multiplicity of contexts and processes at work can complicate the identification of what constitutes the singularity of the concept. In order to contribute to these reflections the present article hypothesizes that the specificity of cross‐border metropolises does not fundamentally stem from the form they take or the nature of the cross‐border integration at work, but rather from the particular role played by national borders in their formation. Opening up borders offers new opportunities for border cities and urban border regions to reinforce their positions at the heart of global economic networks, and to affirm their autonomy as cross‐border regional entities. Without minimizing the possible obstructive effects of borders, it is helpful to recognize that they might also represent a resource in the composition of cross‐border metropolitan regions. 相似文献
39.
One‐sample and multi‐sample tests on the concentration parameter of Fisher‐von Mises‐Langevin distributions on (hyper‐)spheres have been well studied in the literature. However, only little is known about their behaviour under local alternatives, which is due to complications inherent to the curved nature of the parameter space. The aim of the present paper therefore consists in filling that gap by having recourse to the Le Cam methodology, which has recently been adapted from the linear to the spherical setup. We obtain explicit expressions of the powers for the most efficient one‐ and multi‐sample tests. As a nice by‐product, we are also able to write down the powers (against local Fisher‐von Mises‐Langevin alternatives) of the celebrated Rayleigh test of uniformity. A Monte Carlo simulation study confirms our theoretical findings and shows the empirical powers of the above‐mentioned procedures. 相似文献
40.
On the bilateral trade effects of free trade agreements between the EU-15 and the CEEC-4 countries 总被引:1,自引:0,他引:1
Guglielmo Maria Caporale Christophe Rault Robert Sova Anamaria Sova 《Review of World Economics》2009,145(2):189-206
The expansion of regionalism has spawned an extensive theoretical literature analysing the effects of free trade agreements
(FTAs) on trade flows. In this paper we focus on FTAs (also called European agreements) between the European Union (EU-15)
and the Central and Eastern European countries (CEEC-4, i.e. Bulgaria, Hungary, Poland and Romania) and model their effects
on trade flows by treating the agreement variable as endogenous. Our theoretical framework is the gravity model, and the econometric
method used to isolate and eliminate the potential endogeneity bias of the agreement variable is the fixed effect vector decomposition
(FEVD) technique. Our estimation results indicate a positive and significant impact of FTAs on trade flows. This finding is
robust to the inclusion in the sample of a group of control countries (specifically Belarus, the Russian Federation and the
Ukraine) that did not sign an FTA. Besides, we show that trade growth after the FTA agreement with the EU was signed exceeded
trade growth of the control group of countries, which did not become members.
相似文献
Guglielmo Maria CaporaleEmail: |