Course: Microeconomics - Intertemporal Consumption Decisions Consider a person who consumes in the 2 periods (C1 and C2), but ONLY works and earns an income in the first period (C1). Assume that consumption in each period behaves as a normal good. a) What is the effect of a rise in income on welfare? And on consumption in both periods? GRAPH b) What is the effect of a rise in the interest rate (assume that r goes from 10% to 15%) that occurs before the consumption decisions on welfare? GRAPH and on consumption in both periods?) GRAPH

1) In the IS equation why wasnt G in the calculations.   2)Suppose that with all exogenous variables, including T and M at their original values, households become less confident about the future and reduce their autonomous level of consumption from 200 to 150. Solve for the new values of e, Y and NX. With the help of graphs, explain very carefully the mechanisms by which a new equilibrium is reached.  3)Suppose that with all exogenous variables at their original values, the autonomous part of money demand increases to 70. Solve for the new values of e, Y and NX. With the help of graphs, explain very carefully the mechanisms by which a new equilibrium is reached.

11. A worker derives utility from consumption, C and leisure, L U = U(C, L) and initially faces the constraints p.C = N+w.H H = 24 - L where p is the nominal price of consumption, N> 0 is unearned income, w is the nominal wage and H is hours worked. (a) Derive the budget constraint in terms of C and L and show on a diagram an initial optimal choice of C and L, in which both are positive. (b) State this equilibrium algebraically, and briefly explain how it can be derived. (c) Show that, assuming normality of leisure, for some value N*, if N> N*, the individual will choose not to work. Is the initial level of N in your answers to parts a) and b) greater or less than N*?

Note: Dashed drop lines will automatically extend to both axes. OFFEE (Millions of pounds) 32 28 COFFEE (Millions of pounds). 24 20 16 0 32 28 24 20 16 0 PPF 4 12 PPF 0 The following graph shows the same PPF for Sylvania as before, as well as its initial consumption at point A. As you did for Candonia, place a black point (plus symbol) on the following graph to indicate Sylvania's consumption after trade. (?) 4 O True 8 O False Candonia 4 12 20 16 GRAIN (Millions of pounds) 24 Sylvania 12 20 16 GRAIN (Millions of pounds) 28 24 32 28 Consumption After Trade 32 (? + Consumption After Trade True or False: Without engaging in international trade, Candonia and Sylvania would have been able to consume at the after-trade consumption bundles. (Hint: Base this question on the answers you previously entered on this page.)