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121.
Spyridoula Lakka Christos Michalakelis Dimitris Varoutas Draculis Martakos 《Telecommunications Policy》2012,36(1):51-68
A theoretical framework is proposed for the better understanding of the OSS global diffusion. Following a case study approach, the Apache web server's market potential is estimated, forecasted and examined in terms of the socio-economic factors determining its diffusion, across different economic environments in developed versus developing countries. Market saturation is explored under the prism of three theoretical perspectives: the institutional, the endogenous and the exogenous growth theories. Findings suggest that Apache market saturation levels depend on both endogenous and exogenous to a country factors and that institutional quality plays an important role to the market potential. Implications for theory and public policy are discussed. 相似文献
122.
Christos Karpetis Erotokritos Varelas 《International Advances in Economic Research》2012,18(2):199-214
In this paper, a simple Keynesian and discrete time multiplier ?C accelerator model is developed, which results after the inclusion of the money market and a balanced government budget constraint in Samuelson??s (1939) business cycle model. The resulted model is proved to be less stable and the evolution of income around its equilibrium is more likely to exhibit a sinusoidal way of movement. The magnitude of the main tools of fiscal and monetary policy is assumed to be determined solely by the government and the Central Bank respectively, so that income??s constant amplitude around its intertemporal equilibrium value is minimized. 相似文献
123.
We analytically show that a common across rich/poor individuals Stone-Geary utility function with subsistence consumption in the context of a simple two-asset portfolio-choice model is capable of qualitatively and quantitatively explaining: (i) the higher saving rates of the rich, (ii) the higher fraction of personal wealth held in risky assets by the rich, and (iii) the higher volatility of consumption of the wealthier. On the contrary, time-variant “keeping-up-with-the-Joneses” weighted average consumption which plays the role of moving benchmark subsistence consumption gives the same portfolio composition and saving rates across the rich and the poor, failing to reconcile the model with what micro data say. 相似文献
124.
We provide a link between diversification discount and corporate use of financial derivatives. We show that diversified firms benefit from financial risk management. Our findings are consistent with the notion that derivative usage lowers information asymmetry and thereby reduces the negative valuation effects of diversification. Our evidence complements the earlier findings of both the risk management literature and diversification discount literature and is robust to controls for endogeneity and information asymmetry levels. 相似文献
125.
Christos Kotsogiannis Miguel-Angel Lopez-Garcia 《International Tax and Public Finance》2007,14(2):135-149
This paper shows that the welfare implications of indirect tax harmonization in a two-country imperfectly competitive framework,
are, in general, indeterminate in the presence of public goods: Both countries can be made either worse off or better off. This holds under both the destination and origin principles of taxation and is in sharp contrast to existing
results where revenue effects are not present. A consequence of this indeterminacy is that a precise evaluation of tax-harmonizing
policies under both tax regimes requires an explicit consideration of the underlying preferences for private and public goods
as well as the oligopolistic sectors’ relative cost structures.
JEL code F15⋅ H21⋅ H41⋅ H87 相似文献
126.
127.
Christos Karpetis Erotokritos Varelas Spyros Zikos 《International Advances in Economic Research》2006,12(4):449-460
In this article, the time series of Greek real GDP and real money supply are investigated for the presence of a unit root, allowing for maximum two breaks which take place at an unknown point in time. This methodology is preferred to conventional Dickey & Fuller tests because the covered time horizon, namely from 1858 to 1938, is characterized by a number of very important events, the nature of which is either economic or historical. In addition, time series stationarity is checked through a Kwiatkowski, Phillips, Schmidt, and Shin (KPSS) test.University of Macedonia—Greece. The article was presented at the Fifty-Ninth International Atlantic Economic Conference, London, England, March 9–13, 2005 相似文献
128.
129.
In this paper we test for the inclusion of the bid–ask spread in the consumption CAPM, in the UK stock market over the time
period of 1980–2000. Two econometric models are used: first, Fisher’s (in J Appl Econometrics 9:S71–S94, 1994) asset pricing
model is estimated by GMM. We obtain plausible values of all the structural parameters and transactions costs. We subsequently
test the robustness of our results by extending the VAR approach proposed by Campbell and Shiller (in Rev Financ Stud 1:195–228,
1988). This is achieved with the inclusion of the normalised bid–ask spread as an independent variable in the pricing equation.
Overall, the statistical tests are unable to reject the bid–ask spread as an independent explanatory variable in the C-CAPM.
In addition, in the VAR specification we find that both the normalised and the absolute bid–ask spread is a significant predictor
of the dividend to price ratio. The paper’s main conclusion is that transaction costs should be included in asset pricing
models, as they possess independent explanatory power.
相似文献
130.
Environmental regulation and international trade 总被引:7,自引:0,他引:7
Eftichios Sophocles Sartzetakis Christos Constantatos 《Journal of Regulatory Economics》1995,8(1):61-72
In this paper, we investigate how a country's choice of environmental policy instrument affects the international competitiveness of its firms. We show that in a Cournot-Nash equilibrium, the total market share of firms regulated through tradeable emission permits increases relative to that of the firms operating under command and control due to better allocation of total abatement among the firms in the country. Our work suggests that free trade situations should not only result in similar environmental standards but also in similar regulatory regimes. It may come as no surprise that the environmental authorities in Canada are seriously considering following the United States in instituting a tradeable emission permits mechanism.Most of the work was completed during the time that E.S. Sartzetakis was a post-doctoral fellow at the Department of Economics, Université Laval. He gratefully acknowledges the hospitality of the department during this period. Earlier, versions of the paper were presented at the fifth conference of the European Association of Environmental and Resource Economists and at the 1993 Rancontre Franco-Québécoise du GREEN. We would like to thank Joseph Doucet, Thomas Ross, and Aart de Zeeuw for extremely helpful suggestions. We would also like to thank two anonymous referees of this journal for their comments. Financial support from the LRSA of the Faculté des sciences de l'administration, Université Laval, the Groupe de rechearche en économie de l'énergie et des ressources naturelles (GREEN), Université Laval, and the Centre for International Business Studies (CIBS), University of British Columbia, is gratefully acknowledged. The responsibility for errors and omissions remains ours. 相似文献