26. Because of easy entry, monopolistically competitive firms will
charge a price equal to their marginal cost
earn no economic profit in the short-run
earn no economic profit in the long-run
produce at the lowest average total cost achieving production efficiency
take advantage of all economies of scale available to it
27. Excess capacity typically occurs in the short-run
in perfect competition
in the long-run equilibrium in monopolistic competition
in the short-run in monopolistic competition
in the long-run equilibrium
in perfect competition
28. An industry would be considered concentrated in power if the Herfindahl-Hirschman Index (HHI) would equal
.15 (1,500) or less
any coefficient between .15 (1,500 and .18 (1,800)
.25 (2,500) or greater
a coefficient quantifying 800 or less
29. The maximum value for the Herfindahl-Hirschman Index would be _________ indicating a single firm has the entire industry.
100,000
2,500
5,000
7,500
10,000
30. Paul M. Sweezy's "Kinked Demand Curve" theory
states that oligopolists have no incentive to respond to rivals price decreases or increases
states that olitopolists are not strategically interdependent as game theory indicated
states that oligopolists have a greater tendency to respond aggressively to rivals' price increases but will largely ignore price decreases
states that oligopolists have a greater tendency to respond aggressively to rivals' price cuts but will largely ignore price increases
In: Economics
(a) Calculate the five-number summary of the land areas of the states in the U.S. Midwest. (If necessary, round your answer to the nearest whole number.)
| minimum | square miles ? |
| first quartile | square miles ? |
| median | square miles ? |
| third quartile | square miles ? |
| maximum | square miles ? |
| State | Area (sq. miles) |
State | Area (sq. miles) |
|---|---|---|---|
| Illinois | 55,584 | Missouri | 68,886 |
| Indiana | 35,867 | Nebraska | 76,872 |
| Iowa | 55,869 | North Dakota | 68,976 |
| Kansas | 81,815 | Oklahoma | 68,595 |
| Michigan | 56,804 | South Dakota | 75,885 |
| Minnesota | 79,610 | Wisconsin | 54,310 |
(b) Explain what the five-number summary in part (a) tells us about
the land areas of the states in the midwest.
(c) Calculate the five-number summary of the land areas of the
states in the U.S. Northeast. (If necessary, round your answer to
the nearest whole number.)
| minimum | square miles |
| first quartile | square miles |
| median | square miles |
| third quartile | square miles |
| maximum | square miles |
| State | Area (sq. miles) |
State | Area (sq. miles) |
|---|---|---|---|
| Connecticut | 4845 | New York | 47,214 |
| Maine | 30,862 | Pennsylvania | 44,817 |
| Massachusetts | 7840 | Rhode Island | 1045 |
| New Hampshire | 8968 | Vermont | 9250 |
| New Jersey | 7417 |
(d) Explain what the five-number summary in part (c) tells us about
the land areas of the states in the Northeast.
(d) Contrast the results from parts (b) and (d).
In: Math
A homogeneous three-dimensional solid has a heat capacity at constant volume CV that depends on temperature T. Neglecting differences in the transverse and longitudinal waves in the solid, there are 3N vibrational modes, where N is the number of atoms in the solid. Here, the solid has N = 3.01 x 1023 atoms which occupy a total volume V = 18.0 cm3 . There are two transverse shear waves and one longitudinal wave; all waves have the same speed of sound cs. The Debye temperature for this solid is θD = 120.0 K.
(a) In the high-temperature limit T >> θD, write an expression for CV. Evaluate this expression using the parameters at T = 750. K.
(b) In the low-temperature limit, T << θD, write an expression for CV based on the Debye model. Evaluate this expression using the parameters at temperature T = 10.0 K.
(c) In the Debye model, how does the density of states for the sound waves scale with frequency? Using parameters given previously, numerically evaluate the Debye frequency νD corresponding to the upper cutoff in the density of states.
(d) In the Debye model, the Debye frequency νD is related to cs by the density of states and knowing that the total number of modes is 3N and the volume is V. Using your knowledge of the density of states in the Debye model, write an expression to estimate cs. Numerically evaluate this expression. Your answer will be scored based on the scaling of the expression, not based on numerical prefactors.
In: Physics
Topic: Growth of China 1910-1950 (recovering from fall)
Objective: How communist party united people (who were divided by that time due to the issues) and took china towards producing agricultural surplus again which had declined miserably
In: Finance
Please do your own research on Chiquita, the successor to the United Fruit Company. After an extensive research and reading about the history of the company, you should be able to answer the following question.
Why Chiquita is taking social responsibility as its top priority.
In: Economics
There are two parts to this question first part:
Consider a production facility, where the present value of expected future cash inflows from production, V = 80, may fluctuate in line with the random fluctuation in demand (u = 1.4, d = 0.71 per period and the risk-free rate, r = 5%). Suppose management has the option in two years, to contract to half the scale and half the value of the project (c = 50%), and recover $40m (Rc = $40m). Thus, in year 2 management has the flexibility either to maintain the same scale of operations (i.e., receive project value, V, at no extra cost) or contract the scale of operations and receive the recovery amount, whichever is highest. What are the pay-offs of this option at the end nodes (thus in the different states after 2 periods)?
The payoffs, F, of the option in the end note states are respectively: F = 0 , F = 0, F = 20
The payoffs, F, of the option in the end note states are respectively: F = 0 , F = 0, F = 14
The payoffs, F, of the option in the end note states are respectively: F = 196 , F = 100, F = 51
The payoffs, F, of the option in the end note states are respectively: F = 157 , F = 80, F = 41
Second part:
Consider again the production facility (from question above). Again, suppose that management has the option in two years, to halve the scale and the value of the project and recover some value. Thus, in year 2 management has the flexibility either to maintain the same scale of operations or contract the scale of operations, whichever is highest.
For this question, assume the end node pay-offs are 0, 20, 50. Calculate the option value by discounting with the risk neutral probability of 0.5 and a risk free rate of 5%. What is the option value?
In: Finance
Can someone please complete the following code(Java). The stuff in comments are the things you need to look at and code that
package mini2;
import static mini2.State.*;
/**
* Utility class containing the key algorithms for moves in the
* a yet-to-be-determined game.
*/
public class PearlUtil
{
private PearlUtil()
{
// disable instantiation
}
/**
* Replaces all PEARL states with EMPTY state between indices
* start and end, inclusive.
* @param states
* any array of States
* @param start
* starting index, inclusive
* @param end
* ending index, inclusive
*/
public static void collectPearls(State[] states, int start, int end)
{
// TODO
}
/**
* Returns the index of the rightmost movable block that is at or
* to the left of the given index start. Returns -1 if
* there is no movable block at start or to the left.
* @param states
* array of State objects
* @param start
* starting index for searching
* @return
* index of first movable block encountered when searching towards
* the left, starting from the given starting index; returns -1 if there
* is no movable block found
*/
public static int findRightmostMovableBlock(State[] states, int start)
{
// TODO
return 0;
}
/**
* Creates a state array from a string description, using the character
* representations defined by State.getValue. (For invalid
* characters, the corresponding State will be null, as determined by
* State.getValue.)
* Spaces in the given string are ignored; that is, the length of the returned
* array is the number of non-space characters in the given string.
* @param text
* given string
* @return
* State array constructed from the string
*/
public static State[] createFromString(String text)
{
// TODO
return null;
}
/**
* Determines whether the given state sequence is valid for the moveBlocks
* method. A state sequence is valid for moveBlocks if
*
*
*
*
* of the array
*
* Boundary states are defined by the method State.isBoundary, and
* are defined differently based on whether there is any movable block in the array.
* @param states
* any array of States
* @return
* true if the array is a valid state sequence, false otherwise
*/
public static boolean isValidForMoveBlocks(State[] states)
{
// TODO
return false;
}
/**
* Updates the given state sequence to be consistent with shifting the
* "player" to the right as far as possible. The starting position of the player
* is always index 0. The state sequence is assumed to be valid
* for movePlayer, which means that the sequence could have been
* obtained by applying moveBlocks to a sequence that was valid for
* moveBlocks. That is, the validity condition is the same as for moveBlocks,
* except that
*
*
*
* no movable blocks
*
*
* The player's new index, returned by the method, will be one of the following:
*
*
* first movable block in the array;
*
* the last position in the array;
*
*
* Note the last state of the array is always treated as a boundary for the
* player, even if it is OPEN_GATE or PORTAL.
* All pearls in the sequence are changed to EMPTY and any open gates passed
* by the player are changed to CLOSED_GATE by this method. (If the player's new index
* is on an open gate, its state remains OPEN_GATE.)
* @param states
* a valid state sequence
* @return
* the player's new index
*/
public static int movePlayer(State[] states)
{
// TODO
return 0;
}
/**
* Updates the given state sequence to be consistent with shifting all movable
* blocks as far to the right as possible, replacing their previous positions
* with EMPTY. Adjacent movable blocks
* with opposite parity are "merged" from the right and removed. The
* given array is assumed to be valid for moveBlocks in the sense of
* the method validForMoveBlocks. If a movable block moves over a pearl
* (whether or not the block is subsequently removed
* due to merging with an adjacent block) then the pearl is also replaced with EMPTY.
*
* Note that merging is logically done from the right.
* For example, given a cell sequence represented by ".+-+#", the resulting cell sequence
* would be "...+#", where indices 2 and 3 as move to index 3 and disappear
* and position 1 is moved to index 3.
* @param states
* a valid state sequence
*/
public static void moveBlocks(State[] states)
{
// TODO
}
}
Here's the class where you can check your code
package mini2;
/**
* Possible cell states for a certain puzzle game.
*/
public enum State
{
// WARNING: if we change these, be sure to update the TEXT array
too!
EMPTY,
WALL,
PEARL,
OPEN_GATE,
CLOSED_GATE,
MOVABLE_POS,
MOVABLE_NEG,
SPIKES_LEFT,
SPIKES_RIGHT,
SPIKES_DOWN,
SPIKES_UP,
SPIKES_ALL,
PORTAL;
public static boolean isMovable(State s)
{
return s == MOVABLE_POS || s == MOVABLE_NEG;
}
public static boolean canMerge(State s1, State s2)
{
return s1 == MOVABLE_POS && s2 == MOVABLE_NEG ||
s2 == MOVABLE_POS && s1 == MOVABLE_NEG;
}
public static boolean isBoundary(State s, boolean
containsMovable)
{
if (!containsMovable)
{
return s == CLOSED_GATE ||
s == SPIKES_LEFT ||
s == SPIKES_RIGHT ||
s == SPIKES_DOWN ||
s == SPIKES_UP ||
s == SPIKES_ALL ||
s == WALL;
}
else
{
return s == CLOSED_GATE ||
s == SPIKES_LEFT ||
s == SPIKES_RIGHT ||
s == SPIKES_DOWN ||
s == SPIKES_UP ||
s == SPIKES_ALL ||
s == WALL ||
s == OPEN_GATE ||
s == PORTAL;
}
}
public static final char[] TEXT = {
'.', // EMPTY,
'#', // WALL,
'@', // PEARL,
'o', // OPEN_GATE,
'x', // CLOSED_GATE,
'+', // MOVABLE_POS,
'-', // MOVABLE_NEG,
'<', // SPIKES_LEFT,
'>', // SPIKES_RIGHT,
'v', // SPIKES_DOWN,
'^', // SPIKES_UP,
'*', // SPIKES_ALL,
'O'// PORTAL;
};
public static final char NULL_CHAR = 'n';
public static char getChar(State s)
{
if (s == null)
{
return NULL_CHAR;
}
else
{
return TEXT[s.ordinal()];
}
}
public static State getValue(char c)
{
int i;
for (i = 0; i < TEXT.length; ++i)
{
if (TEXT[i] == c)
{
break;
}
}
if (i < TEXT.length)
{
return State.values()[i];
}
else if (c >= 'A' && c <= 'Z')
{
return State.PORTAL;
}
else return null;
}
public static String toString(State[] arr)
{
return toString(arr, true);
}
public static String toString(State[] arr, boolean addSpaces)
{
String text = "";
for (int col = 0; col < arr.length; ++col)
{
State s = arr[col];
char ch = getChar(s);
text += ch;
if (addSpaces && col < arr.length - 1)
{
text += " ";
}
}
return text;
}
}
In: Computer Science
Question 1
The Federal Reserve System is the central bank of the United States, an institution established by the Federal Reserve Act of 1913, the parameters of which can be amended by Congress. As a central bank, the key functions of the Fed are:
-To advise the President and Congress on economic policy.
-To conduct fiscal and monetary policy.
-To conduct monetary policy, support financial system stability and provide banking services to banks and the federal government.
-To manage and monitor the money supply.
Question 2
The Fed’s policy decisions ______ approval.
-require congressional
-require the President's
-do not require
Question 5
In the event of a covered bank’s failure, federal deposit insurance guarantees that depositors will receive up to _____ of the dollar amount in an account.
-$100,000
-$250,000
-$500,000
Question 7
Open market operations consist of the purchase or sale of U.S. government securities.
-True
-False
Question 8
Although open market operations are intended to influence bank reserves, the money supply and interest rates, the direct impact is on the:
-discount rate.
-federal funds rate.
-prime rate.
Question 9
The Fed’s purchase of bonds _____ the money supply and _____ interest rates.
-decreases; raises
-increases; lowers
Question 1
If the Fed lowers the discount rate, the money supply will _____ and market interest rates will _____.
-decrease; increase
-increase; decrease
Question 12
An expansionary monetary policy will shift the supply of loanable funds to the _____, _____ the interest rate.
-left; increasing
-right; decreasing
Question 13
A contractionary monetary policy would be expected to _____ business investment, consumer borrowing and overall AD.
-decrease
-increase
Question 14
Monetary policy should be:
-cyclical.
-countercyclical.
Question 15
The term quantitative easing is synonymous with open market operations.
-True
-False
In: Economics
In: Operations Management
Assume that you recently graduated with a degree in finance and
have just reported to work as an investment adviser at the
brokerage firm of Smyth Barry and Co. Your first assignment is to
explain the nature of the U.S financial markets to Michelle Varga,
a professional tennis player who recently came to the United States
from Mexico. Varga is a highly ranked tennis player who expects to
invest substantial amounts of money through Smyth Barry. She is
very bright; therefore, she would like to understand in general
terms what will happen to her money. Your boss has developed the
following questions that you must use to explain the U.S financial
system to Varga.
a. what are the three primary ways in which capital is transferred
between savers and borrowers?
b. What is market? Differentiate between the following types of
markets; physical asset markets versus financial asset markets,
spot markets versus futures markets, money markets versus capital
markets, primary markets versus secondary markets, and public
markets versus private markets.
c. Why are financial markets essential for healthy economy and
economic growth?
d. What are derivatives? How can derivatives be used to reduce
risk? Can Derivatives be used to increase risk? Explain.
e. Briefly describe each of the following financial institutions:
investment banks, commercial banks, financial services
corporations, pension funds, mutual funds, exchange traded funds,
hedge funds, and private equity companies.
f. What are the two leading stock markets? Describe the two basic
types of stock markets.
In: Finance