. An economy is initially described by the following equations: C = 600 + 0.75(Y - T) I= 1,200 – 50i M/P = Y – 200i G= 2000 T= 2000 M = 4,000 P = 2 a. Derive and graph the IS curve and the LM curve. Calculate the equilibrium interest rate and level of income. Label that point A on your graph. b. Suppose that a newly elected president cuts taxes by 20 percent. Assuming the money

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Which of the following correctly describes how a decrease in the price level affects consumption spending? Select one: a. A decrease in the price level raises real wealth, which causes consumption to increase. b. A decrease in the price level decreases the amount of money a household needs to buy goods and so raises the interest rate, which causes consumption to increase. c. A decrease in the price level increases the amount of money a household needs to buy goods and so raises the interest rate, which causes consumption to increase. d. A decrease in the price level lowers real wealth, which causes consumption to decrease.

Consider a hypothetical economy in which the marginal propensity to consume (MPC) is 0.50. That is, if disposable income increases by $1, consumption increases by 50c. Suppose further that last year disposable income in the economy was $400 billion and consumption was $350 billion. On the following graph, use the blue line (arcle symbol) to pict this economy's consumption function based on these data. CONSUMPTION (Bions of dollars) ) 700 600 500 400 300 200 100 0 -100 9 100 200 300 400 500 000 DISPOSABLE INCOME (Billions of dollars) 700 000 From the preceding data, you know that the level of savings in the economy last year was 3 economy is billion and the marginal propensity to save in this Suppose that this year, disposable income is projected to be $600 billion. Based on your analysis, you would expect consumption to be 3 billion and savings to be S billion,

2. The consumption function Consider a country with the national income of $12 billion, the amount of taxes paid by households of $3 billion, and household consumption of $7 billion. Suppose that the marginal propensity to consume (MPC) is 0.75. On the following graph, use the blue line (circle symbol) to plot the economy's consumption function. Hint: You should plot the first point where household consumption equals $7 billion. Then, plot the second point when real disposable income rises by $4 billion. REAL CONSUMPTION (Billions of dollars) 20 18 16 + 14 12 10 0 0 2 4 6 8 10 12 14 16 18 20 REAL DISPOSABLE INCOME (Billions of dollars) -0 O $7.75 billion O $9.75 billion O $7.5 billion O $10.75 billion Consumption Function (?) Suppose now that country's national income increases to $13 billion. Assuming the amount paid in taxes is fixed at $3 billion and MPC= 0.75, what will be the new household consumption?