i) Now assume that in addition to the earnings wh, the workers earn a surprise additional Wo in income, say from additional tips or unusually long rides. A fraction o of Wo enters into updating the daily target T. The utility function is now U (h; T, n, A, 0, w, wo) = 3 Wot wh - h- + n(wh + Wo -(T + aWo)) if wh + Wo > T+ aWo Wo+ wh - 5 + nx (wh + Wo - (T + aWo)) if wh + Wo