The increase in the number of children without access to healthcare services is an increasingly urgent issue in the United States. By using data from the Community Tracking Study Household Survey 1996 to 1997, we focus this study on the determinants that cause for the widening gap of healthcare...

This paper presents a discrete network design problem for optimally designing freight transport network in terms of the efficiency of supply chain. Modelling is undertaken within the framework of mathematical programmes with equilibrium constraints, which first incorporates both supply chain and...

City logistics aims globally to optimize logistics systems within an urban area by considering the costs and benefits of schemes to the public and private sectors alike. Private shippers and freight operators aim to reduce their freight costs, while the community attempts to alleviate traffic...

This paper presents a Pareto-based bi-objective optimization of hazardous materials vehicle routing and scheduling problem with time windows and shows its application to a realistic hazardous material logistics instance. A meta-heuristic solution algorithm is also proposed, which returns a set...

The Japanese public long-term care insurance for the elderly is unequivocally a problem both for the health care system and as a social issue. The issues for the socially hospitalized and institutionalized are still unsolved due to a lack of family and community support. A central feature is to...

Japanese annual time series data covering the period 1951 to 1982 reveals that changes in the program of social security retirement benefits have substantial influence on personal saving and retirement behavior. The empirical results show that social security retirement benefits depress personal...

The main issue of this paper is to study infant mortality in Latin America in recent decades. In so doing, two questions must be answered: First, how large is the economic loss in terms of net national product due to child mortality under the age of 15 and what are the major causes of death?...