Consider a consumer who lives for two periods. Her utility is a function of consumption levels in periods 1 and 2 and is given by (1,2)=12. Her income levels in periods 1 and 2 are given by 1=2= (that is, her income is the same in both periods). The market interest rate is equal to 0. Will this consumer decide to borrow or lend in period 1? Demonstrate your answer.