CH 2200 Lecture Notes - Lecture 9: Galician Nationalist Bloc, Jeffrey Rowland, Gasoline Gallon Equivalent

Can someone please help me with the following questions. Pleaseprovide an answer/explanation especially for the first three.

?. Suppose a population of flour beetles has 1,000 individuals.Normally the beetles are red; however, this population ispolymorphic for a mutant autosomal body color, black, designated bybb. Red is dominant to black, so BB and Bb genotypes are red.Assume the population is at Hardy–Weinberg equilibrium, with equalfrequencies of the two alleles. What would be the allelefrequencies if a population bottleneck occurred and only fourindividuals survived: one female red heterozygote and three blackmales? A) 0.125 red; 0.875 black B)0.875 red; 0.125 black C) 0.25 red;0.75 black D) 0.75 red; 0.25 black E) 0.5 red;0.5 black

?. What would be the expected frequencies of the red and blackphenotypes in the original population of beetles? A) 0.5 red; 0.5black B) 0.75 red; 0.25 black C) 0.25 red; 0.75black D) All red E) Insufficient information is given to answer thequestion.

?. Given the original population data and a Hardy-Weinbergequilibrium, what are the frequencies of the homozygous dominant,heterozygous, and homozygous recessive (in that order) after 100generations, assuming that no selection or other evolutionaryprocesses are operating? A) 0.25;0.5; 0.25 B) 0.75; 0.20; 0.05 C) 0; 0.5; 0.5 D.) 0; 0; 1 E) None ofthe above

?. The chart below shows the performance of different genotypesat the A locus for three different populations of lizards in twodifferent environments. The first number is their running speed (inm/s) and the second is their relative strength. In which populationis there evidence of a trade-off between running speed and relativestrength? A) Population 1 B) Population 2 C) Population 3 D) Both aand b E) None of the above

Population

1 (AA) 6.2/10 (Aa)7.6/12 (aa)8.2/15

2 (AA)5.1/18 (Aa)6.2/11 (aa)7.4/8

3 (AA)6.9/14 (Aa)6.5/11 (aa)4.7/9

?. The half-life of carbon-14 is 5,700 years. If 10 percent ofthe original carbon-14 is left in a structure, that structure is_______ years old. A ) less than2,850 B) about 5,700 C) between 11,400 and17,100 D) between 17,100 and 22,800 E)about 57,000

?. Which is the best way to estimate the length of time that twospecies have been separated evolutionarily? A) compare pieces ofDNA coding for a structural protein that is present in both speciesB) studying the many nucleotide sites in both species and taking anaverage differences between DNA and RNA C) comparing pieces of DNAfor a functional enzyme that is present in both species D)comparing the DNA differences between two species in non-codingregions E) Comparing fitness levels

?. Incomplete dominance could be considered as supportingevidence for A) Fleming Jenkins blending hypothesis argument B)Alfred Wallace’s theory of Biogeography C) Darwin’s theory ofNatural Selection D) Cuvier’s catastrophe hypothesis E) None of theabove.

?. Penicllium is a mold that grows on bread. It producespenicillin, a toxin which destroys or inhibits bacteria and otherfungi from growing on the bread. This is best labelled A)commensalism B) amensalism C) neutralism D) obligate mutualism C)contest competition

PROBLEMS, GRAPGHING

1. Suppose a candidate who runs on a platform of “soak the rich” wins the 2016 presidential election. After being elected, he or she persuades Congress to raise the top marginal tax rate on the federal personal income tax to 65%.

a. Use one graph to show the effect of this change in tax rates on the market for municipal bonds and another graph to show the effect on the market for U.S. Treasury bonds.

b. What happened to the interest rate spread between municipal bonds and U.S. Treasury bonds and why?

Suppose that, holding yield constant, investors are indifferent as to whether they hold bonds issued by the federal government or bonds issued by state or local governments (they consider the bonds the same with respect to default risk and liquidity). Suppose that state government issued console with $60 annual payments and that the federal government has also issued console with $60 annual payments.

a. If the federal and state consoles have both the same after-tax yields of 6%, what are their pretax yields? (Assume that the federal income tax rate is 36%)

2. Suppose it is 2020 and 1-year interest rate is 5 percent. You observe that the interest rate on 2-year bond is 4.5%. Assume there is no liquidity premium and the interest rates are determined according to expectation hypothesis of the yield curve

a. Based on the interest rates above, what is the expected 1-year interest rate, starting one year from today?

b. If the interest rate on 3-year bond is 4%., what is the expected 1-year interest rate starting 2 years from today?

c. If the interest rate on 4-year bond is 4%., what is the expected 1-year interest rate starting 3 years from today?

d. Draw the yield curve for the next four years.

e. Is the yield curve for the next four years upward sloping or downward sloping? Explain why

f. What might the yield curve today indicate about future interest rates?

g What might the yield curve today indicate about future economic activity? Explain why?

h. What might the yield curve indicate about the markets’ prediction for inflation rate in the next four years?

i. What might the yield curve indicate about monetary policy today?

j. What might the yield curve indicate about a long-term bonds price? Expected return on long-term bonds? Explain

k. Given the slope of the yield curve today, would you rather be lender or borrower in the next five years? Why?

3. The following is from an article in the Wall Street Journal, describing events in the market for Treasury securities on the given day: “Treasury prices were mixed, with the shorter end of the yield curve falling and the longer- dated Treasury rising in prices”.

a. Draw Treasury yield curve, showing the situation on that day as described in the sentence above.

Explain why prices of Treasury were mixed with the shorter end of the yield curve rising in prices and the longer- dated Treasury falling in prices.

Given the latest data on the state of the U.S. economy, assume that the Fed signals the next increase in the target for the federal funds. The increase won’t happen until the Fed’s meeting in summer of 2016.

Will the Treasury yield curve become more or less steep today?

Which of the following would you expect in the market for Treasury? Explain your choice

- There will be an increase in demand for bond today?

There will be a decrease in supply of bonds today?

There will be a decrease in demand for bonds today?

There will be an increase in supply of bonds today?

What will happen to the yields on Treasury? Explain

4. The table below shows current and expected future one-year interest rates, as well as current interest rates on n-year bonds

Year One-year Bond Rate N-Year Bond Rate Liquidity premium

1 2% 2% _______

2 3% 3% _______

3 4% 5% _______

4 6% 6% _______

5 7% 8% _______

Assume the expectation theory of the term structure and calculate interest rates in the term structure for maturities of one to five years.

Draw the yield curve for the next four years.

Is the yield curve for the next four years upward sloping or downward sloping? Explain why

What might the yield curve today indicate about future interest rates?

What might the yield curve today indicate about future economic activity? Explain why?

What might the yield curve indicate about the markets’ prediction for inflation rate in the next four years?

Calculate the liquidity premium for each n-year bond

What does the liquidity premium stay for?

Compare the liquidity premium in 2-year bond and 5-year bond. Why is the liquidity premium on 2-year bond lower than the liquidity premium on 5-year bond?

5. A Suppose that you are the manager of the Bank One. Assume required reserve ratio 10 percent. The bank has the following balance sheet:

Assets Liabilities

Reserves $ 65 million Deposits $ 400 million

Loans $ 425 million Bank capital $ 90 million

Is Bank One meeting the reserve requirement?

By how much can Bank One increase its loans?

Suppose Bank One suffers a deposit outflow of $40 million .Illustrate numerically the effect of the deposit outflow of $40 million on the bank’s deposits and reserves

Does the bank now hold excess reserves?

Is the bank meeting a required reserve ratio of 10 percent?

What action must you take to meet the reserve requirement? List three or more actions. work

If a borrower defaults on a loan of $10 million, will be the bank able to sustain the loss?

Why no, why yes?

If Bank One ROA is 7%, what is the bank profit? What is the bank ROE?

How can you increase the bank’s ROE, what trade –off do you face?

6. Suppose that you are the manager of the Bank One that has $30 million of fixed assets, $20 million of variable interest rate assets, $15 million of fixed liabilities and $25 million of variable interest rate liabilities.

a. Is the rate sensitivity gap positive or negative? Explain

b. Explain verbally and show numerically what will happen to the bank profits if interest rates rise by 4 percent.

c. What action would you take to reduce the bank’s interest-rate risk? Explain

d. Explain and show numerically what happens to the bank profit if interest rates fall by 4 percent

e. What action would you take to reduce the bank’s interest-rate risk? Explain

f. Given the bank assets and liabilities explain how you can use the interest rate swaps to reduce the bank interest rate risk. Would you trade variable- rate payments for fixed- rate payment? Why yes, why not?

7. Assume the following information about the banking system

Quantities in billions of dollars

Currency (C) = $762

Excess Reserves ( R ) = $66

Required reserves (RR) = $0

Checking deposits (D ) = $604

Give the numerical answer to the following questions:

a. What is the size of the monetary base?

b. What is the money supply in the economy?

c. What is the size of the money multiplier?

Assume that the currency to deposit ratio rises to 1.5

a. Compute the effect of the change in currency ratio on the money multiplier, m

b. What will be the money supply now given the monetary base?

If the Fed wants to keep the money supply at the initial level in part b, how must the Fed respond? Explain

Would the Fed adjust the money multiplier, the monetary base or both to keep the money supply at the initial level?

How much would the Fed buy or sell in the government bonds to keep the money supply at the initial level?

8. Assume that the MB = $828, Money supply = $1366, Currency in the circulation = $ $762, Deposit = $$604, the currency to deposits ratio c is 1.262, the excess reserve ratio is 0.109, the required reserve ratio is 0, and the money multiplier m= 1.650. The non-bank public shifts $40B from currency to deposits, and the Fed wishes to keep the money supply at the level of $1366 B. Explain verbally and show numerically the effect of the currency shift on the following

a. The level of reserves in the banking system

b. The monetary base

c. The size of the money multiplier

d. How should the Fed respond given his goal of keeping the money supply at the level of $1366? Explain

e. How much in the government bonds should the Fed buy or sell to keep the money supply at the level of $1366?

9. Use the graph of the market for reserves to analyze each of the following situations. Be sure that your graph clearly shows changes in the equilibrium federal funds rate, changes in the equilibrium level of reserves, any shifts in the demand and supply curves, and any change in equilibrium federal funds rate

Suppose that the Fed decides to increase the federal funds rate from 2%to 2.25%. Show graphically and explain verbally what policy tools the Fed can use to bring the change in the federal funds rate.

Suppose that the Fed decides to decrease the federal funds rate from 2.25%to 2.%. Show graphically and explain verbally what policy tools the Fed can use to bring the change in the federal funds rate.

Suppose that banks increase their demand for reserve. Show graphically and explain verbally how the Fed can offset this change in order to keep the equilibrium federal funds rate unchanged

Suppose there is a switch from currency into deposits, everything else held constant. Show graphically and explain verbally how the Fed can offset this change in order to keep the equilibrium federal funds rate unchanged

Suppose that the Fed decides to decrease the required reserve ratio. Show graphically and explain verbally how the Fed can offset this change in order to keep the equilibrium federal funds rate unchanged.

f. Suppose that banks decrease their demand for reserves. Show graphically and explain

verbally how the Fed can offset this change in order to keep the equilibrium federal funds

rate unchanged.

Good Vibes: Introduction to Oscillations

The conditions that lead to simple harmonic motion are as follows:

There must be a position of stable equilibrium.

There must be a restoring force acting on the oscillating object. The direction of this force must always point toward the equilibrium, and its magnitude must be directly proportional to the magnitude of the object's displacement from its equilibrium position. Mathematically, the restoring force F⃗  is given by ⃗, where is the displacement from equilibrium and k is a constant that depends on the properties of the oscillating system.

The resistive forces in the system must be reasonably small.

Consider a block of mass m attached to a spring with force constant k, as shown in the figure(Figure 1) . The spring can be either stretched or compressed. The block slides on a frictionless horizontal surface, as shown. When the spring is relaxed, the block is located at x=0. If the block is pulled to the right a distance A and then released, A will be the amplitude of the resulting oscillations.

Assume that the mechanical energy of the block-spring system remains unchanged in the subsequent motion of the block.

Part A

After the block is released from x=A, it will

(a) remain at rest

(b) move to the left until it reaches equilibrium and stop there. 

(c) move to the left until it reaches x= –A and stop there. 

(d) move to the left until it reaches x=−A and then begin to move to the right.

The time it takes the block to complete one cycle is called the period. Usually, the period is denoted T and is measured in seconds.

The frequency, denoted f, is the number of cycles that are completed per unit of time: f=1/T. In SI units, f is measured in inverse seconds, or hertz (Hz).

Part B

If the period is doubled, the frequency is

(a) unchanged 

(b) doubled 

(c) halved

Part C

An oscillating object takes 0.10 s to complete one cycle; that is, its period is 0.10 s. What is its frequency f?

Express your answer in hertz.

Part D

If the frequency is 40 Hz, what is the period T?

Express your answer in seconds.

The following questions refer to the figure (Figure 2) that graphically depicts the oscillations of the block on the spring.

Note that the vertical axis represents the x-coordinate of the oscillating object, and the horizontal axis represents time.

Part E

Which points on the x-axis are located at a distance A from the equilibrium position?

(a) R only

(b) Q only

(c) both R and Q

Part F

Suppose that the period is T. Which of the following points on the t-axis are separated by the time interval T?

(a) K and L

(b) K and M 

(c) K and P

(d) L and N 

(e) M and P 

Now assume for the remaining Parts G - J, that the x coordinate of point R is 0.12 m and the t coordinate of point K is 0.0050 s.

Part G

What is the period T?

Express your answer in seconds.

Part H

How much time t does the block take to travel from the point of maximum displacement to the opposite point of maximum displacement?

Express your answer in seconds.

Part I

What distance d does the object cover during one period of oscillation?

Express your answer in meters.

Part J

What distance d does the object cover between the moments labeled K and N on the graph?

Express your answer in meters.