Nabataean finds from Thaj and Qatif

Ties between the Nabataean area of northwestern Arabia and southern Palestine, and the northeastern portion of the Arabian peninsula have been discussed for some years. The material evidence of such ties is meagre, but nonetheless important. Two Nabataean coins from Thaj and one from Qatif are presented here, along with a painted Nabataean sherd from Thaj. Their implications are treated briefly.     

The assumption of equilibrium in the analysis of migration and interregional differences: a review of some recent research

"This paper questions the plausibility of the assumption of interregional equilibrium in recent research into migration and the valuation of amenities in the United States. It is shown that it is difficult to develop a satisfactory explanation for continuing net migration which is compatible with the equilibrium assumption, and that recent relevant research generally fails to support the idea that the U.S. economy is in equilibrium. The association of higher rent levels with in-migration is explained as a short-run phenomenon. If the spatial economy is in disequilibrium, then the valuations of amenities assuming equilibrium will be biased, being probably too low in areas of net in-migration and too high in areas of net out-migration."