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All Journal Randwick International of Social Science Journal
Jin Wang
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Humanities Social Sciences

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Statistical-Economic Design of Control Chart If The Vector of Target Values of Multi-Variables Shifts With Time Hong Mao; Jin Wang
Randwick International of Social Science Journal Vol. 2 No. 1 (2021): RISS Journal, January
Publisher : RIRAI Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47175/rissj.v2i1.187

Abstract

In this paper, the statistical-economic design of a multivariate special triangle control chart is proposed to control the processes of the quality characteristics or financial indices shifting with time. A multi-objective programming with several constraints is used to determine optimal solutions of control region (probability of false alarm), the power of finding out assignable cause(s), sample interval and sample size. An application of the statistical-economic design of a Multivariate special triangle control chart is illustrated to control the soundness of insurers of U.S
Health Care Insurance and Moral Hazard Hong Mao; Jin Wang
Randwick International of Social Science Journal Vol. 2 No. 3 (2021): RISS Journal, July
Publisher : RIRAI Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47175/rissj.v2i3.268

Abstract

In this article, we discuss how moral hazard affects health care insurance, the social benefit and the harmfulness of moral hazard in health care insurance. We also discuss the relationship between copayment rate and decease risks and indicate that it is necessary to reduce copayment ratio for serious decease in social health care insurance in order to generate social gain. Finally, we carry out sensitivity analysis to illustrate the effect of the change of important parameters on optimal copayment rate.
Co-Authors Hong Mao