This paper investigates efficiency performance of thirty six banks operating in Gulf Cooperation Council (GCC) countries during the period 2006-2008 . Our results indicate in general GCC banks showed considerable pure technical efficiency in the past three years with the year 2007 exhibit the...

This paper employs several efficiency measures and productivity changes using Data Envelopment Analysis (DEA) to investigate efficiency performance of Islamic banks in Sudan. Our results indicate, among twelve banks included in our sample only two banks, (the largest bank in the group which is...

This paper investigates sensitivity of U.S. natural gas price to crude oil price changes, using time-varying coefficient models. Identification of the range of variation of the sensitivity of natural gas price to oil price change allows more accurate assessment of upper and minimum risk levels...

This paper investigates long-term relationship that links stock prices of three major North African stock markets: Egypt, Morocco, and Tunisia . The paper shows, there is strong evidence of multivariate and bivariate nonlinear long-term relationship between stock prices of these markets....

Results in this paper support evidence of time-varying beta coefficients for five sectors in Kuwait Stock Market. The paper indicates banks, food, and service sectors exhibit relatively wider range of variation compared to industry and real estate sectors. Results of time-varying betas...

Market inefficiency has influence on resource allocation, as price signals tend systematically understate or overstate the effects of information transmitted to the trading parties in the market. In this paper a number of statistical tests employed to assess the weak-form efficiency of Khartoum...

This paper employs a nonparametric test to investigate nonlinearity in the long-run equilibrium relationship between GCC stock markets returns. The results in the paper show strong evidence of bivariate and multivariate cointegration between five of GCC stock markets. However, Bahrain stock...

Due to restrictive foreign exchange policy and active parallel markets for foreign exchange in some developing countries, it is often believed that the real official exchange rate is undervalued (overvaluing in domestic currency). Since an overvalued domestic currency depresses official current...

This paper investigates estimation of extreme risk in a number of stock markets in the Gulf Cooperation Council (GCC) countries , Saudi, Kuwait, and United Arab Emirates, in addition to S& P 500 stock index, using the Generalized Pareto Distribution (GPD) model. The estimated tails parameter...

This paper employs a combination of unit root tests and fractional integration technique to test for rational bubbles in Bombay Stock Exchange (BSE). It is indicated in the paper that evidence of a unit root in dividend yield is consistent with presence of rational bubbles in the stock prices....