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Cornia Giovanni Andrea Popov Vladimir 《MOCT-MOST: Economic Policy in Transitional Economies》1998,8(1):7-32
MOCT-MOST: Economic Policy in Transitional Economies - 相似文献
84.
Fernando Pigeard de Almeida Prado Vladimir Belitsky Alex Luiz Ferreira 《Journal of Mathematical Economics》2011,47(4-5):642-653
We propose a discrete choice model of socially interacting consumers choosing between two product variants. The model shows that the discontinuity of demand as well as the demand polarization proposed by Becker (1991), A Note on Restaurant Pricing and Other Examples of Social Influences on Price, depend crucially on the heterogeneity of consumers’ preferences and on the level of product differentiation. When the two products are sufficiently similar, it turns out that the market is shared asymmetrically as suggested by Becker (1991). By contrast, when the products are different and the preferences of the consumers are sufficiently heterogeneous, the market is shared symmetrically as in Hotelling’s (1929) model. 相似文献
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The authors propose some new approaches in order to evaluate formally regional specifics of political and legal culture and institutes' impact on the dynamics of economic development of the regions and on the regions' investment climate. They demonstrate using a model that the influence of institutional factors, including some indicators for the basic individual rights maintenance in the regions, on economic growth is significant. 相似文献
87.
It is becoming increasingly important in the healthcare setting to treat patients as consumers and measure their satisfaction with medical services rendered. As such, patient satisfaction should be considered an important output of a country's healthcare system, basically reflecting the stage of its development. The conducted study tested students’ satisfaction with the quality of service provided by student polyclinics. In particular, the study has analysed the impacts of personal relationships, promptness and tangibility on student satisfaction. The findings imply that all three factors significantly affect patient satisfaction, with personal relationships having the strongest impact. Such results suggest that healthcare providers should encourage their doctors to devote more time to their patients and show genuine concern for patients’ problems if they wish to improve overall satisfaction of their patients with the delivered services. 相似文献
88.
The goal of this paper is to evaluate the validity of the Taylor principle for inflation control in 12 developing countries that use inflation targeting regimes: Brazil, Chile, Colombia, Hungary, Israel, Mexico, Peru, Philippines, Poland, South Africa, Thailand and Turkey. The test is based on a state-space model to determine when each country has followed the principle; then a threshold unit root test is used to verify if the stationarity of the deviation of the expected inflation from its target depends on compliance with the Taylor principle. The results show that such compliance leads to the stationarity of the deviation of the expected inflation from its target in all cases. Furthermore, in most cases, non-compliance with the Taylor principle leads to nonstationary deviation of the expected inflation. 相似文献
89.
Over recent years, a study on risk management has been prompted by the Basel committee for regular banking supervisory. There are however limitations of some widely-used risk management methods that either calculate risk measures under the Gaussian distributional assumption or involve numerical difficulty. The primary aim of this paper is to present a realistic and fast method, GHICA, which overcomes the limitations in multivariate risk analysis. The idea is to first retrieve independent components (ICs) out of the observed high-dimensional time series and then individually and adaptively fit the resulting ICs in the generalized hyperbolic (GH) distributional framework. For the volatility estimation of each IC, the local exponential smoothing technique is used to achieve the best possible accuracy of estimation. Finally, the fast Fourier transformation technique is used to approximate the density of the portfolio returns.The proposed GHICA method is applicable to covariance estimation as well. It is compared with the dynamic conditional correlation (DCC) method based on the simulated data with d = 50 GH distributed components. We further implement the GHICA method to calculate risk measures given 20-dimensional German DAX portfolios and a dynamic exchange rate portfolio. Several alternative methods are considered as well to compare the accuracy of calculation with the GHICA one. 相似文献
90.
Vitaly S. Guzhva Kseniya Beltsova Vladimir V. Golubev 《Journal of Economics and Finance》2010,34(1):30-45
We assess market valuation of airline convertible preferred stocks using a contingent claims valuation model that was extensively
tested by Ramanlal et al. (Rev Quant Financ Account 10:303–319, 1998). Our sample consists of 4,096 daily price observations of 11 convertible preferred stocks issued by the U.S. airlines in
1980–1991. For each convertible we estimate daily model prices for 2 years after issuance and compare them with market prices
by calculating pricing errors. While the entire sample’s mean pricing error is found to be negative 3.8%, the panel data analysis
and the mean pricing errors of the sub-samples indicate that the undervaluation is much more severe in the first 6 months
of trading. The results suggest that airlines leave about 10% on the table when they raise capital by issuing convertible
securities. 相似文献