Please interpret .

For this question, you have an individual who lives in a pure exchange economy for twoperiods, t=1,2. Let their income and dollars consumed in period t be denoted by yt and Ct, respectively. Let r denote the per period market rate of interest earned on savings and charged on debt. Finally, let financial assets (savings or debt) in period t be given by at. Assume there is no uncertainty. I.e., income earned in both periods and the market rate of interest are known with absolute certainty at every point in time. Let the individual's lifetime function be given by: U(C)=u(C1)+1+1u(C2),0