We discuss dynamic server control in a two-class service system under a constraint on the number of high-priority customers. A class of randomized threshold policies is defined, and is proven to contain an optimal policy in the case without abandonments. The proof of optimality is then used to construct heuristic policies for the case of low-priority abandonments, which we test numerically. The...

BACKGROUND Research on socio-economic determinants of migrant health inequalities has produced a large body of evidence. There is lack of evidence on the influence of structural factors on lives of fragile groups, frequently exposed to health inequalities. The role of poor socio-economic status and country level structural factors, such as migrant integration policies, in explaining migrant hea...

European cities, in particular major cities with strong economies, attract immigrants from all over the world. As a result, urban populations have become increasingly heterogeneous in ethnic, cultural, and religious terms. The housing of migrants is a central issue that affects quality of life in general. Besides finding employment and gaining access to good education it remains a crucial aspec...

OBJECTIVE To 'map' the current (2004) state of prenatal screening in Europe. DESIGN (i) Survey of country policies and (ii) analysis of data from EUROCAT (European Surveillance of Congenital Anomalies) population-based congenital anomaly registers. SETTING Europe. POPULATION Survey of prenatal screening policies in 18 countries and 1.13 million births in 12 countries in 2002-04. METHODS...

This article provides State-level data on the Medicaid 1915(c) home and community-based services (HCBS) waivers program. Medicaid 1915(c) waiver participants were 32 percent of the Medicaid participants in institutional care in 1997. These data document wide interstate variation in organizational oversight and program policies for the waivers. Many structural barriers to HCBS waiver growth exis...

the main objective of this study is to examine the impacts of two demand side policies, namely; expanding food industries and externally increase in households’ demand for agricultural goods ,on the growth of products in agricultural subsector. to this end, a social accounting matrix (sam) is constructed based on the latest iranian input- output table released in 2001. then, production multipli...

Both of these aspects are important for assessing the role of the euro in the world. Use of the euro by the international financial markets will be strengthened by further progress towards an integrated European financial market. But equally important are credible policies in the euro area, with a monetary policy geared towards price stability and fiscal and structural policies that promote sus...

This qualitative study examines the interpersonal and structural barriers to drug treatment program entry, retention, and outcomes experienced by injection drug-using couples, and the program policies regarding injection drug-using couples seeking treatment in New York, New York. Our findings reveal a mismatch between the substantial need for concurrent and coordinated treatment for partnered i...