The first section of this essay deals with an iconographical analysis of Lavinia Fontana’s(1552-1614)Prudence or Personification of Wisdom of 1590,while the second part provides an iconological interpretation,demonst...The first section of this essay deals with an iconographical analysis of Lavinia Fontana’s(1552-1614)Prudence or Personification of Wisdom of 1590,while the second part provides an iconological interpretation,demonstrating Fontana’s application of emblematic significations.This painting is presently on display at the Galerie Maison d’Art in Monte Carlo.At this time there is lack of knowledge about the patronage of this commission,except from the art gallery’s records showing that it acquired the painting from a private collection in New York.展开更多
How would you describe your music style? It’s a mixture of Eastern and Western music with a touch of African voice.I have been compared,by many,to Anita Baker,Whitney Houston and Minnie Riperton.As a child I used to ...How would you describe your music style? It’s a mixture of Eastern and Western music with a touch of African voice.I have been compared,by many,to Anita Baker,Whitney Houston and Minnie Riperton.As a child I used to sing in church and that has been my foundation of music.My life is at optimum piety展开更多
This paper deals with the effort problem under multiple risks in bivariate utility setting. We identify preference conditions to insure positive or negative effect of a background variable uncertainty on effort in the...This paper deals with the effort problem under multiple risks in bivariate utility setting. We identify preference conditions to insure positive or negative effect of a background variable uncertainty on effort in the presence of other risks. We allow for the simultaneous presence of wealth and background variable uncertainties. We investigate the joint effect of two-source uncertainties on effort when two risks are either small or positive quadrant dependent. Our work extends the previous model of effort to bivariate utility framework and presents new insights into the issue of optimal effort under uncertainty.展开更多
A classical portfolio theory deals with finding the optimal proportion in which an agent invests a wealth in a risk-free asset and a probabilistic risky asset. Formulating and solving the problem depend on how the ris...A classical portfolio theory deals with finding the optimal proportion in which an agent invests a wealth in a risk-free asset and a probabilistic risky asset. Formulating and solving the problem depend on how the risk is represented and how, combined with the utility function defines a notion of expected utility. In this paper the risk is a fuzzy variable and the notion of expected utility is defined in the setting of Liu’s credibility theory. Thus, the portfolio choice problem is formulated as an optimization problem in which the objective function is a credibilistic expected utility. Different approximation calculation formulas for the optimal allocation of the credibilistic risky asset are proved. These formulas contain two types of parameters: Various credibilistic moments associated with fuzzy variables(expected value, variance, skewness and kurtosis) and the risk aversion, prudence and temperance indicators of the utility function.展开更多
This paper deals with the issue of priority setting in health care under uncertainties about the severity of the illness and the effectiveness of medical treatment. We examine the effect of a disease uncertainty(a tre...This paper deals with the issue of priority setting in health care under uncertainties about the severity of the illness and the effectiveness of medical treatment. We examine the effect of a disease uncertainty(a treatment uncertainty) on the allocation of health care resources in the presence of a treatment risk(a disease risk) and identify preference conditions under which the social planner allocates more resources to higher risk population. We allow for the simultaneous presence of two risks and investigate the joint effect of two-source uncertainties on health care allocation when the two risks are either small or positively quadrant dependent. The effect of inequality aversion on health care allocation is also analyzed by introducing an equity weighting function. Our work extends the previous model of health care priority to two-risk framework and provides new insights into the problem of health care decision making under uncertainty.展开更多
文摘The first section of this essay deals with an iconographical analysis of Lavinia Fontana’s(1552-1614)Prudence or Personification of Wisdom of 1590,while the second part provides an iconological interpretation,demonstrating Fontana’s application of emblematic significations.This painting is presently on display at the Galerie Maison d’Art in Monte Carlo.At this time there is lack of knowledge about the patronage of this commission,except from the art gallery’s records showing that it acquired the painting from a private collection in New York.
文摘How would you describe your music style? It’s a mixture of Eastern and Western music with a touch of African voice.I have been compared,by many,to Anita Baker,Whitney Houston and Minnie Riperton.As a child I used to sing in church and that has been my foundation of music.My life is at optimum piety
基金Supported by the College Excellent Young Talents Program of Anhui(gxyq2017243)the College Natural Science Foundation of Anhui Provincial Education Department(KJ2017A851)
文摘This paper deals with the effort problem under multiple risks in bivariate utility setting. We identify preference conditions to insure positive or negative effect of a background variable uncertainty on effort in the presence of other risks. We allow for the simultaneous presence of wealth and background variable uncertainties. We investigate the joint effect of two-source uncertainties on effort when two risks are either small or positive quadrant dependent. Our work extends the previous model of effort to bivariate utility framework and presents new insights into the issue of optimal effort under uncertainty.
文摘A classical portfolio theory deals with finding the optimal proportion in which an agent invests a wealth in a risk-free asset and a probabilistic risky asset. Formulating and solving the problem depend on how the risk is represented and how, combined with the utility function defines a notion of expected utility. In this paper the risk is a fuzzy variable and the notion of expected utility is defined in the setting of Liu’s credibility theory. Thus, the portfolio choice problem is formulated as an optimization problem in which the objective function is a credibilistic expected utility. Different approximation calculation formulas for the optimal allocation of the credibilistic risky asset are proved. These formulas contain two types of parameters: Various credibilistic moments associated with fuzzy variables(expected value, variance, skewness and kurtosis) and the risk aversion, prudence and temperance indicators of the utility function.
基金Supported by the College Natural Science Foundation of Anhui Provincial Education Department(KJ2016A694)the University Excellent Young Talents Program of Anhui(gxyq2017243)
文摘This paper deals with the issue of priority setting in health care under uncertainties about the severity of the illness and the effectiveness of medical treatment. We examine the effect of a disease uncertainty(a treatment uncertainty) on the allocation of health care resources in the presence of a treatment risk(a disease risk) and identify preference conditions under which the social planner allocates more resources to higher risk population. We allow for the simultaneous presence of two risks and investigate the joint effect of two-source uncertainties on health care allocation when the two risks are either small or positively quadrant dependent. The effect of inequality aversion on health care allocation is also analyzed by introducing an equity weighting function. Our work extends the previous model of health care priority to two-risk framework and provides new insights into the problem of health care decision making under uncertainty.
