Skill Composition Of The Risk Attitude Of Uncertainty In Decision-making

The systematic exploration on how skill elements affect uncertain decision-making began with a series of studies by Tversky on 1991.Tversky and other researchers found that decision-making under uncertainty depend largely on its source. Decision-makers'preference have effect on the determination of decision weights and then risk attitude when there are skill elements include in the source. Tversky and Other researchers deeply exported characteristics of decision-making under uncertainty,especially in features of risk attitude and important effect factors.Researchers mainly focus on how decision-maker's preference to the source of uncertainty effects risk attitude when the source includes skill element or has randomness in this field. Most examinations focus on the differences of risk attitude between events included skill element and random events,and among events included skill element in different areas. Among them, the research findings which have most widely influences are competence hypotheses, control hypotheses and comparative ignorance hypotheses. The explanations to the result of experiment by researchers are different from each other, because sometimes most of the conclusion based on different contexts and subjects probabilities are not at the same level. Researchers still have different suggestion about the risk attitude in decision-making when in different contexts and different areas in which decision-makers have different competence.The present examination included two experiments. In the first experiment, We designed comparative context and non-comparative context to explore how skill elements influence risk attitude in different contexts. In the second one,We examined the difference of risk attitude between areas in which decision-makers have different competences in a non-comparative context,to explore how skill elements influence risk attitude in different areas.The results showed that:1.In non-comparative context, risk seeking level of decision-makers'increased with subject probabilities'rising. The risk attitude in events included skill elements was same to random events. The evidences suggested that skill elements didn't have effect on risk attitude in non-comparative context.2.In comparative context, decision-makers had higher risk seeking level in random events compared to events included skill elements when the probabilities were low. The risk attitude had no significant differences between random events and events included skill elements when the probabilities were moderate. Decision-makers had higher risk seeking level in events included skill elements compared to random events when the probabilities were high. The findings showed that skill elements have different effects on risk attitude at different probabilities in comparative context.3.The risk attitude had significant difference between areas with different competences in non-comparative context. Decision-makers had preference to events included skill element in more competent areas. The findings showed that decision-makers had higher risk seeking level in areas in which they were more competent.