Purpose Childhood amblyopia can be treated with binocular games or movies that rebalance contrast between the eyes, which is thought to reduce depth of interocular suppression so the child can experience binocular vision. While visual acuity gains have been reported following binocular treatment, studies rarely report gains in binocular outcomes (i.e., stereoacuity, suppression) in amblyopic ch...

investments in the extension of health insurance coverage, the strengthening of public health services, as well as primary care and better hospitals, highlights the emerging role of healthcare as part of china’s new growth regime, based on an expansion of services, and redistributive policies. such investments, apart from their central role in terms of relief for low-income people, serve to reb...

This article builds on the mean-variance criterion and the links with the expected utility maximization to define the optimal allocation of portfolios, and extends the results in two ways, first considers tailored made utility functions, which can be non continuous and able to capture possible preferences associated with some portfolio managers. Second, it presents results that relate to static...

Prior to the Telecommunications Act of 1996, many U.S. states restructured their regulatory framework by replacing rate-of-return regulation with competition in both the local exchange service and local long-distance markets and adopting price regulation (price caps and price freezes). Using a panel data set of incumbent Ž rm prices for three services, I investigate whether price regulation and...

Transaction costs can make it unprofitable to rebalance all the way to the ideal portfolio. A single-period analysis using mean-variance theory provides many interesting insights. With fixed or variable costs, there is a non-trading region within which trading does not pay. With only variable costs, any trading is to the boundary of the non-trading region, while fixed costs induce trading to th...