CAS EC 102 Lecture Notes - Lecture 19: Demand Curve, Aggregate Demand, Exchange Rate

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22 Mar 2017

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I goes up relative to the rest of the world, put money into us - need dollars to buy. Us assets demand for dollars goes up when demand for anything goes up - price goes up. When nominal exchange rate goes up, real exchange rate goes up. Why aggregate demand curve slopes down: wealth effect, interest rate effect, international trade effect. It costs more for firms to invest. Role of consumption and investment in aggregate expenditure. Buying a house is investment not consumption. Change in aggregate expenditure means moving along the demand curve line. Monetary policy: policy which affect r (interest rates) - federal reserve. Fiscal policy: policies which affect g (government purchases) and / or t (taxes) - president and congressional budget office. Changes in expectations of households or firms. Changes in foreign variables: government policies and the ad curve. Monetary policy - policies which affect r (affect loans, funds)

Related Questions

True or False

1. The loanable fund market demand is the demand for consumption.

( ) 2. An increase in the bond price increases the bond yield.

( ) 3. An increase in the stock price increases the stock rate of return.

( ) 4. Monopoly increases unemployment, but monopsony does not.

( ) 5. The open market operation is the changes in interest rate in open market.

( ) 6. The high reserve requirement has the direct relationship with money creation.

( ) 7. The money value and price level have inverse relationship.

( ) 8. The nominal interest rate is related to inflation.

( ) 9. An inflation tax is the tax put on inflation.

( ) 10. Government expenditure belongs to the aggregate supply.

( ) 11. 1973-1975 recession is due to aggregate demand shift.

( ) 12. 2001 recession is due to aggregate demand shift.

( ) 13. As potential GDP is smaller than actual GDP, recession occurs.

( ) 14. A money supply results in shift of aggregate supply GDP.

( ) 15. The multiplier effect is bigger as marginal propensity to consume is smaller.

( ) 16. The multiplier effect comes together with crowding effect.

( ) 17. A recession results in decrease of welfare program.

( ) 18. A recession results in decrease of tax revenue.

( ) 19. The unemployment and inflation are in inverse relation.

( ) 20. The unemployment and inflation relation does not related to aggregate demand.

( ) 21. A quota deceases export

( ) 22. A tariff decreases import.

( ) 23. A real exchange rate is not related to nominal exchange rate.

( ) 24. A purchasing power parity exchange rate is not related to nominal exchange rate.

( ) 25. A flexible exchange rate is not related to nominal exchange rate.

( ) 26. The export increases consumer surplus.

( ) 27. The trade deficit results in capital inflow.

2. Summarize

(1) loanable fund market

(2) monetary policy tools

(3) quantity equation

(4) Okun's law

(5) mutiplier effect and crowding effect

(6) automatic stabilizers

(7) risk aversion and risk taking

(8) Fisher effect

(9) aggregate model

(10) aggregate demand shift

(11) Phillips curve

(12) protectionist policies

(13) capital inflow and capital outflow

crimsonraccoon647

14) Globalization refers to

A) the process of establishing a common world currency.

B) the willingness of individuals within a given country to share knowledge.

C) the process of countries becoming more open to foreign trade and investment.

D) the reduction in growth rates of real GDP per capita as a result of trade with foreign

countries.

15) According to a study by economists Raymond Fisman and Edward Miguel, as the level of corruption in a country increases,

A) so does the number of parking violations by the country's United Nations delegates.

B) so does the size of the country's population.

C) the levels of foreign direct investment and foreign portfolio investment decrease.

D) the levels of real GDP per capita and real income per capita increase.

16) Which of the following best describes the "wealth effect"?

A) When the price level falls, the real value of household wealth falls.

B) When the price level falls, the nominal value of household wealth falls.

C) When the price level falls, the nominal value of household wealth rises.

D) When the price level falls, the real value of household wealth rises.

17) The "interest rate effect" can be described as an increase in the price level that raises the interest 17) rate and chokes off

A) government spending.

B) government spending and unplanned investment.

C) investment and consumption spending.

D) net exports.

18) Which of the following is one explanation as to why the aggregate demand curve slopes downward?

A) Decreases in the price level raise the interest rate and increase consumer spending.

B) Decreases in the price level raise the interest rate and increase investment spending.

C) Decreases in the U.S. price level relative to the price level in other country's lower net exports.

D) Decreases in the price level to raise real wealth and increase consumer spending.

19) Higher personal income taxes

A) increase in aggregate demand.

B) increase disposable income.

C) decrease aggregate demand.

D) both B and C

20) If the U.S. dollar decreases in value relative to other currencies, how does this affect the aggregate demand curve?

A) This will move the economy up along a stationary aggregate demand curve.

B) This will move the economy down along a stationary aggregate demand curve.

C) This will shift the aggregate demand curve to the left.

D) This will shift the aggregate demand curve to the right.

21) How do lower taxes affect aggregate demand?

A) They increase disposable income, consumption, and aggregate demand.

B) They reduce disposable income, consumption, and aggregate demand.

C) they increase corporate investment and aggregate demand.

D) They increase aggregate supply and thus increase aggregate demand as well.

sangriagoat830

MBA502, Economics for Business

Apply and Discover 7.2

You are responsible for economic policymaking in your country. Your desire is to eliminate inflation, keeping prices absolutely stable at P = 100, no matter what happens to output. Currently, the economy is in equilibrium at Q = 3200 (where Q = potential GDP) and P = 100. You can use monetary and fiscal policies to affect aggregate demand but you cannot affect aggregate supply in the short run. How would you respond to the following scenarios?

Explain and illustrate how each of these events would affect aggregate demand, aggregate supply, and prices, then explain how you would respond with economic policies.

1. A surprise increase in investment spending

In the short run, when investment spending increases, it results in an increase in Aggregate Demand (AD), which in turn pushes up both GPD and the price index.

To counterbalance this development, government might pursue contractionary fiscal policy by increasing taxes (to reduce consumption) or decreasing its own investment and spending so that the AD curve shifts back to its original position. Alternatively, the government can pursue contractionary monetary policy by reducing money supply and increasing interest rate to discourage economic activity.

2. Catastrophic floods that cause a sharp food price increase

In this case, sharp food shortages and consequent price increases cause a shock-type adjustment of the aggregate supply curve (it shift up and to the left). The result is a lower GDP and a higher price level.

The government cannot do anything to adjust AS in the short run. However, if the goal is to maintain the price level constant, the government can decide to do something to decrease the aggregate demand to force prices to come down, though it will be accompanies by another contraction in GDP and so it would not be a smart thing to do.

To cause AD to decrease, the government, similar to example above, can pursue fiscal policy (increase taxes, decrease spending) or monetary policy (reduce supply of money to the economy and thus increase interest rates).

3. A productivity decline that reduces potential output

In this case, AS shifts to the left, as was the case in example 2. As a result, price levels go up, as the same amount of money is chasing the reduced amount of goods and services, and GDP declines.

Government remedies here would be centered about causing AD to decrease through contractionary fiscal (higher taxes, lower spending) or monetary (reduce money supply and increase interest rates) policy. Again, this decision reduces inflation but at expense of GDP, as real output shrinks further.

4. A deep depression in East Asia that causes a sharp decrease in net exports to the United States

A decrease in exports of goods to from the United States to Asia will mean that the aggregate demand (which includes net exports

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CAS EC 102 Lecture Notes - Lecture 19: Demand Curve, Aggregate Demand, Exchange Rate

CAS EC 102 Full Course Notes

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