Incertidumbre: enfoque media - varianza, dominancia estocástica, manejo de riesgos y riesgo no soportable.

This paper will develop the half variance approach,identifying the expected utility functions that can be expressed in terms of the expected value and standard deviation. We study the stochastic dominance to determine the conditions required by the ordering of lotteries when they are probability distribution functions. Then we will see the choice of goods and contingent assets. Finally, we discuss the model of Hicks and lexicographic ordering for measurable risks but supportable.