full domain risk theory

For a long time, there are two theoretical systems in risk measurement, they are full domain risk theory and asymmetric risk theory. In full domain risk theory, risk is defined as the uncertainty of returns.
长期以来，有关证券的风险度量存在着两大理论体系——全域风险理论和非对称风险理论： 全域风险理论将风险定义为收益的不确定性。