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91.
Georgios Chortareas Andrea Cipollini Mohamed Abdelaziz Eissa 《Review of Development Economics》2011,15(4):758-774
This paper considers the linkage between stock prices and exchange rates in four MENA (Middle East and North Africa) emerging markets. In contrast to the existing evidence that uses a global market index to uncover such a relationship it is found that for the sample countries oil prices emerge as the dominant factor in the above relationship. The paper considers the presence of regime shifts and evidence is found of cointegration only for the period following the 1999 oil price shock. Readjustment towards equilibrium in each stock market occurs via oil price changes. Finally, a number of robustness checks are performed and persistence profiles produced. 相似文献
92.
Cliff A. Robb Laura M. Reynolds Mohamed Abdel‐Ghany 《International Journal of Consumer Studies》2007,31(1):90-94
The present study uses data from the Continuing Survey of Food Intakes by Individuals 1994–1996, 1998 in order to analyse milk consumption by type, specifically high‐fat milk vs. low‐fat milk. Whereas trend analysis displays an overall increase in low‐fat milk consumption over the last few decades in the United States, a number of individuals still consume high‐fat milk varieties, and overall dietary intakes have yet to achieve recommended levels. In light of recent research regarding fat intakes, it is important to understand what factors might cause consumers to purchase high‐fat options given the number of low‐fat options available in the market. Through the use of Logistic regression, key socio‐economic and demographic variables are analysed in order to determine their impacts on the probability of consuming low‐fat milk vs. high‐fat milk. The results indicate that a number of factors do influence probability of low‐fat milk consumption as compared with high‐fat milk consumption. Most notably, probability of low‐fat milk consumption appears to be positively related to age, education level, and income level. African Americans and other minorities had a lower probability of consuming low‐fat milk when compared with White people in the sample population. Also, those respondents designated as low income or living in the South were less likely to consume low‐fat milk. 相似文献
93.
Will African Agriculture Survive Climate Change? 总被引:7,自引:0,他引:7
Kurukulasuriya Pradeep; Mendelsohn Robert; Hassan Rashid; Benhin James; Deressa Temesgen; Diop Mbaye; Eid Helmy Mohamed; Fosu K. Yerfi; Gbetibouo Glwadys; Jain Suman; Mahamadou Ali; Mano Renneth; Kabubo-Mariara Jane; El-Marsafawy Samia; Molua Ernest; Ouda Samiha; Ouedraogo Mathieu; Sene Isidor; Maddison David; Seo S. Niggol; Dinar Ariel 《World Bank Economic Review》2006,20(3):367-388
Measurement of the likely magnitude of the economic impact ofclimate change on African agriculture has been a challenge.Using data from a survey of more than 9,000 farmers across 11African countries, a cross-sectional approach estimates howfarm net revenues are affected by climate change compared withcurrent mean temperature. Revenues fall with warming for drylandcrops (temperature elasticity of 1.9) and livestock (5.4),whereas revenues rise for irrigated crops (elasticity of 0.5),which are located in relatively cool parts of Africa and arebuffered by irrigation from the effects of warming. At first,warming has little net aggregate effect as the gains for irrigatedcrops offset the losses for dryland crops and livestock. Warming,however, will likely reduce dryland farm income immedia-tely.The final effects will also depend on changes in precipitation,because revenues from all farm types increase with precipitation.Because irrigated farms are less sensitive to climate, wherewater is available, irrigation is a practical adaptation toclimate change in Africa. 相似文献
94.
Mohamed M. Mostafa 《International Journal of Nonprofit & Voluntary Sector Marketing》2010,15(2):157-171
- Blood donation has historically been marketed as one of the purest examples of altruistic or pro‐social behavior. The recruitment of blood donors is, however, a challenge as transfusion centers worldwide strive to attract and retain blood donors. This study uses self‐organizing maps (SOM) to examine the effect of various psychographic and cognitive factors on blood donation in Egypt. SOM is a machine learning method that can be used to explore patterns in large and complex datasets for linear and nonlinear patterns. The results show that major variables affecting blood donation are related to altruistic values, perceived risks of blood donation, blood donation knowledge, attitudes toward blood donation, and intention to donate blood. The study also shows that SOM models are capable of improving clustering quality while extracting valuable information from multidimensional data.
95.
This paper studies the total factor productivity (TFP) of banks in Malaysia with the emphasis on comparing the relative productivities of Islamic and Conventional banks. The Malmquist index approach is used to decompose productivity growth into technical efficiency and technological change. The productivity growth is measured and decomposed into technical change and efficiency change. The efficiency change is further decomposed into pure efficiency change and scale efficiency. It is found that Islamic banks' productivity growth is limited by its lack of technological change compared to its conventional counterparts. Nonetheless, both types of banks are operating at the correct level in terms of scale or size. 相似文献
96.
In this article, we introduce a new theoretical international asset pricing model which accounts for partial financial market segmentation. We show that if some investors do not hold all international assets because of implicit and/or explicit segmentation factors, the world market portfolio is not efficient and the classic ICAPM must be augmented by a new factor reflecting the local risk undiversifiable internationally. We test this model empirically for a sample of emerging markets. Our findings show that the degree of market integration is time-varying and that the premium associated with the domestic risk factors is the most important component of the total risk premium. However, our results also show that most of the emerging markets we study have become more integrated in the end of our sample period as a result of liberalization and reforms. 相似文献
97.
Using a non-parametric technique for data from 1995 to 2004, we investigate the cost and profit efficiency of 28 Chinese commercial banks. We examine the influence of ownership type, size, risk profile, profitability and key environmental changes on the bank efficiency using a Tobit regression. Consistent with the existing literature, we find that profit efficiency levels are well below those of cost efficiency. This suggests that the most important inefficiencies are on the revenue side. Our findings are also consistent with prior evidence on ownership and efficiency: joint-stock banks (national and city-based), on average, appear to be more cost- and profit-efficient than state-owned banks while medium-sized banks are significantly more efficient than small and large banks. These and other results suggest the need for speedier reforms to open the banking market, improving risk management, minimizing the government's capital subsidy and diversifying ownership of Chinese banks. 相似文献
98.
GCC countries’ output is heavily dichotomized into oil and non-oil. Oil shocks have similar effects on all member countries
but little is known about their responses to non-oil shocks. This paper sets out to determine (1) whether aggregate demand
(AD) and non-oil supply shocks (AS) are symmetrical across these countries to justify their suitability for monetary union;
and (2) whether there is any commonality of shocks with the United States and the three major European countries, namely France,
Germany, and Italy, which can warrant the choice of either the US dollar or the Euro as the anchor for the expected common
currency of the bloc. We use bivariate structural vector autoregression models identified with long-run restrictions to extract
the shocks. Our results show that (a) AD shocks are unequivocally symmetrical but non-oil AS shocks are weakly symmetrical
across GCC countries thereby suggesting a monetary union is feasible, but not overwhelmingly; (b) neither AD nor AS shocks
are symmetrical between GCC countries and the selected European countries; (c) GCC’s AD shocks are symmetrical with the US
but non-oil AS shock are not. Furthermore, there are no significant changes in the results when we aggregate the GCC countries
as a bloc. We therefore surmise that the US dollar is a more appropriate anchor for the new currency than the Euro since US
monetary policy can at least help smooth demand shocks in GCC countries. 相似文献
99.
Recognized as one of the most unique archaeological sites in the world, the Giza pyramids plateau is the location of the three great pyramids and the Sphinx, tombs, seven smaller pyramids, and other monuments. Over the centuries the plateau has been instrumental in introducing Egyptian civilization to the world, and was recently declared as one of the most iconic travel spots on the planet.In recent years, the location of the new Grand Egyptian Museum (GEM) within the site of the plateau re-ignited the debate between scholars, practitioners and activists over development activities within and around this unique site. Consequently, a growing conflict re-emerged between conserving the plateau and developing the surrounding areas. Additionally, this invaluable site is threatened by urban expansion and development, pollution, rising groundwater and extensive tourism. Yet, currently there are neither tourism management nor development plans for the site.Building on national and international conservation conventions and charters, this paper explores analyses and documents the current gap between ideal conservation management sittings within and around the pyramids plateau and the reality of urban development trends and tourism activities. 相似文献
100.