Gravity model applications in health planning: analysis of an urban hospital market

Article Abstract:

A gravity model that takes into consideration both spatial and nonspatial measures of separation was used to analyze hospital patient flow. The model was used to determine the effects of health care reform and hospital closure on patient flows in an urban hospital market. Results showed that universal health coverage enhanced lower income patients' access to hospital services. Hospitals targeted for possible closure experienced higher patient inflows while medical schools experienced a decline in patient inflows.

Analysis, Economic aspects, Medical care, Hospitals, Health care reform

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Evolution of urban systems in the Pareto plane

Article Abstract:

A study was conducted on the parameters of Pareto distributions in terms of underlying economic factors and considering the size of the largest city in the distribution. Finite Pareto distributions where city sizes are bounded from above were introduced to solve problems faced by the rank-size rule and the unbounded Pareto distribution. The green-belt model previously proposed was also reexamined with emphasis on its combination with finite Pareto distributions.

Distribution (Economics), Urban economics

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On the combination-separation principle: a metaphor for evolving system processes

Article Abstract:

A study was conducted on evolving system processes using a metaphor called the combination-separation principle (CSP). CSP reflects human thought processes, consequently inducing resonant harmonics with the mind of the observer. Resonant harmonics, in turn, can lead to emergent phenomena, creativity and composite system behavior. CSP caan be applied to the tough processes, the periodic chart of the chemical elements, social evolution and industrial organization.

Thought and thinking, Thinking

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