Exercise 8. Consider the four-person house swapping game defined by the following preferencest At b d b C C C (a) Show that the allocation Q'= ( Ab. Ba. Co, De) is in the cors. (b) Show that it is weakly dominated by the alloce tion that gives all traders their first choice. (c) Formulate the same in which the same four traders start with the allocation Q , and determine its core and strict core