ECO 3401 Chapter 10.1: ECO 3401 - Module 10.1

31 views2 pages

plumtrout443

11 Nov 2017

School

Department

Course

Professor

For unlimited access to Textbook Notes, a Class+ subscription is required.

Document Summary

Part a: graphs and the derivative: increasing functions, function increases at an increasing rate, constant rate, or decreasing rate (pictured, decreasing functions, increasing rate, constant, decreasing rate. Part d: applying the test: locate the critical numbers for f on a number line, as well as any points where f is undefined, choose a value of x in each of the intervals from step 1. Use these values to decide (cid:449)hether f" (cid:894)x(cid:895) > 0 or f" (cid:894)x(cid:895) < 0 in that inter(cid:448)al: use the test above to decide whether f is increasing or decreasing on the. Part e: applying the test interval: (cid:4666)(cid:4667)= (cid:2871) (cid:884)(cid:2870)+(cid:883)(cid:887)+(cid:883)(cid:882, find where the function is increasing or decreasing, locate critical numbers, calculate the derivative, set this derivative equal to 0. (3x 5)(x + 3) = 0. 3x 5 = 0 or x + 3 = 0.

Related Questions

The demand for money
A) d and e are correct
B) all of the following are correct
C) decreases as the average selling price of a unit of outputincreases
D) increases as GDP increases
E) is increased by credit card usage
2. The higher the interest rate, the more of their wealth peoplewill hold as money.
A) True
B) False
3. The money demand curve slopes
A) downward because the cost of holding money decreases as theinterest rate decreases
B) downward because the cost of holding money increases as theinterest rate decreases
C) upward because people demand more money as GDP increases
D) upward because people demand more money as GDP decreases
E) downward because people demand more money as the price levelincreases
4. Which of the following, other things constant, will shift themoney demand curve to the left?
A) an increase in the interest rate
B) a decrease in the interest rate
C) a decrease in real GDP
D) an increase in real GDP
E) an increase in the price level
5. An increase in the money supply will
A) increase the demand for money at each interest rate
B) decrease the demand for money at each interest rate
C) lead people to try to exchange money for interest-bearingassets
D) lead people to try to exchange interest-bearing assets formoney
E) increase the interest rate
6. When an increase in the money supply reduces the interest rate,investment and nominal GDP increase.
A) True
B) False
7. In the short run, a decrease in the money supply will cause adecrease in Gross Domestic Product and a decrease in the pricelevel.
A) True
B) False
8. The demand curve for investment is graphed with __________ onthe vertical axis and __________ on the horizontal axis.
A) the interest rate; investment
B) investment; the interest rate
C) the price level; investment
D) investment; the price level
E) real GDP; investment
9. As the interest rate increases,
A) the demand for investment curve shifts to the right
B) the demand for investment curve shifts to the left
C) there is a movement downward along the demand for investmentcurve
D) there is a movement upward along the demand for investmentcurve
E) GDP increases
10. If the economy experiences a contractionary gap and the Fedstimulates the economy, then:
A) The money supply is increasing because the Fed prints moremoney
B) The money supply is decreasing because the Fed hoardsmoney
C) The money supply is increasing because the Fed makes open-marketpurchases
D) The money supply is decreasing because the Fed makes open-marketsales
E) There is no change in the money supply because the Fed cannotinfluence the money supply
11. If the Fed decreases the money supply, GDP
A) increases because the resulting increase in the interest rateleads to a decrease in investment
B) increases because the resulting decrease in the interest rateleads to an increase in investment
C) decreases because the resulting increase in the interest rateleads to a decrease in investment
D) decreases because the resulting increase in the interest rateleads to an increase in investment
E) decreases because the resulting decrease in the interest rateleads to an increase in investment
12. An increase in the money supply can increase the price level,real GDP, or both, but it is impossible to tell exactly what willhappen without knowing the slope of the aggregate supplycurve.
A) True
B) False
13. If the economy experiences an expansionary gap and the Fedsells US government securities in the open-market, then:
A) Money supply increases, investment increases, aggregate demandincreases
B) Money supply increases, the interest rate increases, and theaggregate demand increases
C) Money supply decreases, the interest rate decreases, and theaggregate demand falls
D) Money supply decreases, the investment decreases, and theaggregate demand decreases
E) Interest rate falls, investment falls, aggregate demandincreases
14. If the money supply equals $1,000 and nominal GDP equals$3,000, then V
A) equals 1/3
B) equals 3
C) equals 3 million
D) cannot be determined since we do not know anything aboutprices
E) cannot be determined since we do not know anything about realGDP
15. If the money supply is increasing at a constant 8 percent,velocity is constant, real GDP is increasing at 5 percent, and theinflation rate is 3 percent, which of the following is true?
A) The growth rate of GDP is too low to be maintained.
B) The inflation rate is too low to be maintained.
C) Velocity is too low to be maintained.
D) The money supply growth rate is too low to be maintained.
E) This situation can continue indefinitely.
16. If real output and velocity are stable and predictable, thenthe equation of exchange can be used to derive a simplerelationship between
A) the money supply and the price level
B) the money supply and the interest rate
C) the money supply and the foreign exchange rate
D) velocity and real GDP
E) velocity and nominal GDP
17. For the quantity theory of money to yield usefulpredictions,
A) fiscal policy must be ineffective in altering aggregatedemand
B) fiscal policy must be effective in altering aggregatedemand
C) the economy must be operating at the potential level of realGross Domestic Product
D) velocity must be stable or predictable
E) velocity must be unstable
18. A rising rate of inflation
A) makes people more willing to hold money as an asset
B) reduces the usefulness of money as a store of value and thusincreases the velocity of money
C) increases the usefulness of money as a medium of exchange andthus reduces the velocity of money
D) is usually preceded by a reduction in the money supply
E) does not, apparently, have any effect on the velocity ofmoney
19. There is considerable disagreement about whether the Fedshould
A) engage in open market operations
B) have the power to set reserve requirements
C) reduce the money supply when the economy is growing
D) allow banks to invest in the stock market
E) attempt to control interest rates or should instead attempt tocontrol the money supply
20. For interest rates to remain stable during economic expansions,the growth rate of the money supply should
A) exceed the growth in the demand for money
B) just match the growth in the demand for money
C) be less than the growth in the demand for money
D) be zero
E) just match the growth in nominal GDP

salmonpug424

Real GDP (Y) can be decomposed into the sum of spending by consumers (C), firms (I), the government (G) and net exports (X-M). Y = C + I + G + NX. A common approach taken in exploring real GDP developments is to explore how each of these four spending components identified will develop in the near future. For example, if consumer confidence (an example of a forward looking indicator) is increasing, this is usually taken as a signal that C will be increasing at a 'healthy' growth rate in the near future. If consumer confidence is decreasing, then C is expected to be flat. Since the spending components feed into real GDP (go back to the circular flow diagram), the development of C gives some indication about near future developments in real GDP or economic growth. Thus, one can explore expected changes in C, I, G, and NX to get a handle on the expected real GDP growth for the next quarter or year. Your assignment is to develop a report that describes expectations for US RGDP in the short term (6 months to 1 year) and medium term (2 to 3 years). This type of macroeconomic outlook report is important and of interest to every type of business enterprise as it is the basic indicator of future output and input market conditions. Your report should be addressed to someone who has only a basic understanding of economics; thus, you should as part of your report, explain the definition of each of the spending components (an any other technical terms you use). You may use charts and graphs as appropriate. The finished report should be 3 to 5 pages, and include a Executive Summary of no more than 200 words. While you are free to use whatever references you want (please make sure that your report appropriately documents any resources)

JUST NEED SOME GUIDENCE OR OUTLINE

3. A firm has a long-run production function:

(a) In the short run, K = 81 is fixed. Find the short-run production function. What is the marginal product of labor in the short-run?

(b) If w = 10 and r = 15.24, find the short-run cost function. To do this, first, figure out how many workers are needed to produce Q units of output, and then add up the (fixed) SR cost of capital and the cost of labor as a function of Q. How many workers are needed to produce Q = 10?

(c) Write down equations for an average total cost (ATC) and average variable cost (AVC) as a function of Q. What is ATC when Q = 10? What as AVC when Q = 10?

(d) Write down the equation for the marginal cost (MC) as a function of Q. What is the marginal cost of producing Q = 10 in the short run?

(e) Verify that MC = w*MPL, evaluating the marginal product of labor from part (3a) at the number of workers needed to produce 10 units of output.

(f) In the long run, both capital and labor are variable. Find the marginal product of labor and the marginal product of capital. Find the marginal rate of technical substitution. On a properly-labeled graph, draw an isoquant for Q = 10.

(g) Does the production function exhibit increasing, decreasing, or constant returns to scale?

(h) Find the lowest cost method of producing Q = 10 (two unknowns: K and L). To do this, equate the MRTS with the input price ratio w r (one equation) and use the isoquant for Q = 10 as the second equation.

(i) Use the fact that the cost, in the long run, is wL + rK to find the LR cost of producing Q = 10. What is the long-run average cost (LRAC) at Q = 10?

(j) (Hard) More generally, use the MRTS and the production function to find the cost of producing any quantity Q. To do this, repeat the above exercise but keep Q as an (unknown) variable, and solve for K and L as functions of Q.

(k) On a properly labeled graph, depict ATC from part (3b) and LRAC from part (3j). Why is LRAC everywhere below ATC?

(l) What is the production level at which SRAC is minimized?

salmonhyena380

ECO 3401 Chapter 10.1: ECO 3401 - Module 10.1

Document Summary

Get access

Related textbook solutions

Principles of Economics

Principles of Macroeconomics

Principles of Microeconomics

Related Documents

ECO 3401 Chapter 11.1: ECO 3401 - Module 11.1

ECO 3401 Chapter 11.2: ECO 3401 - Module 11.2

ECO 3401 Chapter Notes - Chapter 6.1: Frequency Distribution, Histogram

Related Questions