Can an Islamic Model of Housing Finance Cooperative Elevate the Economic Status of the Underprivileged?.

This paper was refined during my sabbatical study at James Madison University (JMU). I appreciate the hospitality of JMU particularly that of Ehsan Ahmed. I have benefited from the critical comments of the participants of the seminars at James Madison University; University of Birmingham; University of Glasgow; the 2006 Conference on Computing in Economics and Finance (in Cyprus); the 2007 IIUM International Conference (in Malaysia); at the 2007 Workshop on Default Risk and Financial Distress (in Rennes, France), the 2007 Product Development and Management Association Conference (in Bangalore, India); the 2008 International Conference on Business and Finance (in Hyderabad, India); the 2008 International AREUEA Conference (in Istanbul, Turkey); the 2008 Workshop of European Network of the Economics of Religion (in Edinburgh, UK); and the 2008 Symposium on Religion, Markets and Society (in Nottingham, UK) on earlier drafts of the paper. I am also grateful to the following individuals for their helpful suggestions: Bruce Brunton, Humayon Dar, Mohammad Omar Farooq, Diana Mitlin, Kelly Morris, Peter Oliver, Barkley Rosser, Peer Smets, Ghulam Sorwar, Rafal Wojakowski and Robert Young. All remaining errors are mine.ASCRA, Asset Bubble, Mutual Bank, Inflation, Mortgage Design,and ROSCA.

Level Set Jet Schemes for Stiff Advection Equations: The SemiJet Method

Many interfacial phenomena in physical and biological systems are dominated by high order geometric quantities such as curvature. Here a semi-implicit method is combined with a level set jet scheme to handle stiff nonlinear advection problems. The new method offers an improvement over the semi-implicit gradient augmented level set method previously introduced by requiring only one smoothing step when updating the level set jet function while still preserving the underlying methods higher accuracy. Sample results demonstrate that accuracy is not sacrificed while strict time step restrictions can be avoided

The Futures Pricing Puzzle

This paper models commodity futures in a rational expectations equilibrium specifically (i) incorporating the conflict of interests between Hedgers (Producers-Consumers) and Speculators and (ii) superimposing constraints to immunize the real sector of the economy from shocks of excessive futures contracting. We extend the framework of Newbery and Stiglitz (1981), Anderson and Danthine (1983) and Britto (1984) to attribute the conflicting and puzzling results in the empirical literature to the presence of multiple equilibria ranked in a pecking order of decreasing pareto-efficiency. Thus, we caution empirical researchers on making inferences on data embedded with moving equilibria, as it can render their analysis of asset pricing mechanism incomprehensible. Finally, we rationalize the imposition of position limits by policy makers to help steer the equilibria to pareto-inferior ones, which make the real sector of the economy more resilient to shocks from the financial sectorContango, Expectations, Normal Backwardations