Answer the following questions. Briefly explain the intuition. a. Suppose current tax rises while future tax remains unchanged. What happens to the labor supply curve? b. Suppose a consumer pays current lump-sum tax t = 10 and future lump-sum tax t 0 = 11, and suppose the real interest rate is 10%. If the current tax rises to 11 and the future tax falls to 9.9 at the same time, what would happen to current consumption, future consumption, and saving? Show your work.