2. The rule of choice > Choice set C(B,%)={x∈B:x%y,vy∈B} Proposition 2: if are rational, then choice construct(@B, C"( %))satisfied WA Prop 2 indicate that if the decision-maker have rational preference, than his choice satisfied WA Is his preference rational if his choice is observed satisfy WA? lecture for Chu Kechen Honors Collegelecture4 for Chu Kechen Honors College 2.The rule of choice ➢ Choice set ➢ Proposition2: if are rational, then choice construct satisfied WA. ➢ Prop.2 indicate that if the decision-maker have rational preference, than his choice satisfied WA. Is his preference rational if his choice is observed satisfy WA? ( , (., )) C  B % % C B x B x y y B ( , ) { : , }  % % =   