Question : 61. (p. 39) Which of the following true regarding VERs? A. International regulatory bodies set : 1242191

Economics

61. (p. 39) Which of the following is true regarding VERs?
A. International regulatory bodies set export/import limits.
B. The importing sets the trade limits for import.
C. The exporting country sets the limits.
D. It is a common reaction to lenient tariffs and quotas by the importing country.
E. A VER is established in agreement with the importing country.

62. (p. 39) When the United States refuses to sell goods to Iran because of the perception that the country harbors radicals and terrorists, the refusal is called a(n):
A. boycott.
B. embargo.
C. tariff.
D. orderly market agreement.
E. currency block.

63. (p. 40) _____ is accomplished by refusing to allow importers to exchange its national currency for the seller’s currency.
A. Boycotted money
B. Embargoed capital
C. Blocked currency
D. Anti-banking
E. Cartel dissolution

64. (p. 40) In order to secure foreign exchange, which of the following is used by countries experiencing severe shortages of foreign exchange?
A. Import quotas
B. Government approval
C. Tariffs
D. Blocked currency
E. Differential exchange rates

65. (p. 40) Which of the following trade policy tools requires the importers who want to buy a foreign good to apply for an exchange permit?
A. Tariffs
B. Import quota
C. Blocked currency
D. Government approval
E. Export levies

66. (p. 40) Which of the following can the exchange permit stipulate?
A. The quantity of goods that can be exchanged for a particular sum of foreign currency
B. The number of parties that can be involved in an exchange transaction
C. The amount to be exchanged to be deposited in a local bank
D. The parties involved to declare collaterals to avail of exchange permits
E. The number of times one party can avail of exchange permits

67. (p. 41) Tall Pine Plywood Company has just received notice that a shipment of plywood (2 metric tons) has been rejected by Japanese customs because the knotholes commonly found on a plywood sheet are too large. This would be an illustration of which of the following nontariff barriers to trade?
A. Quota
B. Predatory pricing
C. Embargo
D. Boycott
E. Standards

68. (p. 41) The United States and other countries require some products (automobiles in particular) to contain a percentage of “local content” to gain admission to their markets. This is an example of the usage of _____ to restrict trade.
A. exchange permits
B. quotas
C. tariffs
D. standards
E. antidumping penalties

69. (p. 41) According to the information provided in the text, a new nontariff barrier that was designed to prevent foreign producers from using predatory pricing is called:
A. quotas.
B. fees.
C. standards.
D. antidumping laws.
E. licenses.

70. (p. 41) _____ is the practice whereby a foreign producer intentionally sells their products in the United States for less than the cost of production to undermine the competition and take control of the market.
A. Basing point pricing
B. Offensive pricing
C. Defensive pricing
D. Counterpoint pricing
E. Predatory pricing

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July 1, 2023

Watch video entitled “Module 6 – Discrete-Time Signals in MATLAB”
Work the lab activity below using MATLAB.
Include answers for Problems and include MATLAB coding along with any output plots that support solutions into a Word document entitled “Lab6_StudentID”. Where your student id is substituted in the file name.
Upload file “Lab6_StudentID”.

Activity 1:

A discrete-time system can be described in one of two ways. One is by the unit-pulse response of the system, and the other is by the difference equation. In the first case, if we are given an input and want to find the output, we have to convolve the system response with the input signal. In the second case, we have to solve the difference equation for the output when the input signal is substituted into the difference equation. The result should be the same no matter what approach is used.

A discrete-time system has the following unit-pulse response:

for

Correspondingly, the following difference equation describes the behavior of the system:

Use the Matlab command conv to calculate the response of the system to a unit step input, x[n]=u[n]. Consider . Show what you type into the Matlab command window. Also, submit a plot of the output. Be sure to label your axes.

Matlab Tip: Remember that you can easily get help on a command in Matlab by typing help with the command at the prompt:

EDU>>help conv

Matlab Tip: Also, don't forget that in Matlab when you do certain operations on an array element-by-element, you must precede the operator with a period. For instance, in Matlab, if you define an array n as follows:

EDU>>n=[0:20];

then the first term of the unit-pulse response is written as 0.5.^n

Matlab Tip: Sometimes it is useful to know the size of arrays you have created. This can be done in several ways. For example, you can use the command size:

EDU>> size(n)

ans =

1 21

The size of the array is returned. In this case, the array n has a size of 1 row by 21 columns.

Alternatively, you can switch the display from the Current Directory to the Workspace. Then all current variables and arrays and their sizes are displayed. Just click on Workspace in the upper left corner as indicated below.

Use the Matlab function recur to calculate the response of the system to a unit step input, x[n]=u[n]. Again consider . Show all that you type into the Matlab command window. Submit a plot of the output with the axes labeled.

The Matlab function recur is not a function which comes with Matlab or any of the toolboxes you have installed. Instead, it is a that must be added to your Matlab directory.

The Matlab function recur can be found in a zip file at the Mathworks site at the following location:

http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=2148

Extract the file recur.m to the current directory shown at the top of the Matlab window.

On the other hand, you can copy and paste the script below into a text file like Notepad and save it as recur.m in the current directory shown at the top of the Matlab window.

function y = recur(a,b,n,x,x0,y0);

% y = recur(a,b,n,x,x0,y0)

% solves for y[n] from:

% y[n] + a1*y[n-1] + a2*y[n-2]... + an*y[n-N]

% = b0*x[n] + b1*x[n-1] + ... + bm*x[n-M]

% a, b, n, x, x0 and y0 are vectors

% a = [a1 a2 ... aN]

% b = [b0 b1 ... bM]

% n contains the time values for which the solution will be computed

% y0 contains the initial conditions for y, in order,

% i.e., y0 = [y[n0-N], y[n0-N+1], ...,y[n0-1]]

% where n0 represents the first element of n

% x0 contains the initial conditions on x, in order

% i.e., x0 = [x[n0-M],...,x[n0-1]]

% the output, y, has length(n)

N = length(a);

M = length(b)-1;

if length(y0) ~= N,

error('Lengths of a and y0 must match')

end

if length(x0) ~= M,

error('Length of x0 must match length of b-1')

end

y = [y0 zeros(1,length(n))];

x = [x0 x];

a1 = a(length(a):-1:1); % reverses the elements in a

b1 = b(length(b):-1:1);

for i=N+1:N+length(n),

y(i) = -a1*y(i-N:i-1)' + b1*x(i-N:i-N+M)';

end

y = y(N+1:N+length(n));

To get information on how to use the function, at the Matlab prompt, type:

EDU>>help recur

It might be helpful to change the index of the difference equation such that the highest index is n rather than n+2.

Are your plots the same? If not, why not?

**PLEASE SEE ATTACHMENT**

July 1, 2023

Watch video entitled “Module 6 – Discrete-Time Signals in MATLAB”
Work the lab activity below using MATLAB.
Include answers for Problems and include MATLAB coding along with any output plots that support solutions into a Word document entitled “Lab6_StudentID”. Where your student id is substituted in the file name.
Upload file “Lab6_StudentID”.

Activity 1:

A discrete-time system has the following unit-pulse response:

for

Correspondingly, the following difference equation describes the behavior of the system:

Use the Matlab command conv to calculate the response of the system to a unit step input, x[n]=u[n]. Consider . Show what you type into the Matlab command window. Also, submit a plot of the output. Be sure to label your axes.

Matlab Tip: Remember that you can easily get help on a command in Matlab by typing help with the command at the prompt:

EDU>>help conv

EDU>>n=[0:20];

then the first term of the unit-pulse response is written as 0.5.^n

Matlab Tip: Sometimes it is useful to know the size of arrays you have created. This can be done in several ways. For example, you can use the command size:

EDU>> size(n)

ans =

1 21

The size of the array is returned. In this case, the array n has a size of 1 row by 21 columns.

Use the Matlab function recur to calculate the response of the system to a unit step input, x[n]=u[n]. Again consider . Show all that you type into the Matlab command window. Submit a plot of the output with the axes labeled.

The Matlab function recur is not a function which comes with Matlab or any of the toolboxes you have installed. Instead, it is a that must be added to your Matlab directory.

The Matlab function recur can be found in a zip file at the Mathworks site at the following location:

http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=2148

Extract the file recur.m to the current directory shown at the top of the Matlab window.

On the other hand, you can copy and paste the script below into a text file like Notepad and save it as recur.m in the current directory shown at the top of the Matlab window.

function y = recur(a,b,n,x,x0,y0);

% y = recur(a,b,n,x,x0,y0)

% solves for y[n] from:

% y[n] + a1*y[n-1] + a2*y[n-2]... + an*y[n-N]

% = b0*x[n] + b1*x[n-1] + ... + bm*x[n-M]

% a, b, n, x, x0 and y0 are vectors

% a = [a1 a2 ... aN]

% b = [b0 b1 ... bM]

% n contains the time values for which the solution will be computed

% y0 contains the initial conditions for y, in order,

% i.e., y0 = [y[n0-N], y[n0-N+1], ...,y[n0-1]]

% where n0 represents the first element of n

% x0 contains the initial conditions on x, in order

% i.e., x0 = [x[n0-M],...,x[n0-1]]

% the output, y, has length(n)

N = length(a);

M = length(b)-1;

if length(y0) ~= N,

error('Lengths of a and y0 must match')

end

if length(x0) ~= M,

error('Length of x0 must match length of b-1')

end

y = [y0 zeros(1,length(n))];

x = [x0 x];

a1 = a(length(a):-1:1); % reverses the elements in a

b1 = b(length(b):-1:1);

for i=N+1:N+length(n),

y(i) = -a1*y(i-N:i-1)' + b1*x(i-N:i-N+M)';

end

y = y(N+1:N+length(n));

To get information on how to use the function, at the Matlab prompt, type:

EDU>>help recur

It might be helpful to change the index of the difference equation such that the highest index is n rather than n+2.

Are your plots the same? If not, why not?

**PLEASE SEE ATTACHMENT**

July 1, 2023

Watch video entitled “Module 6 – Discrete-Time Signals in MATLAB”
Work the lab activity below using MATLAB.
Include answers for Problems and include MATLAB coding along with any output plots that support solutions into a Word document entitled “Lab6_StudentID”. Where your student id is substituted in the file name.
Upload file “Lab6_StudentID”.

Activity 1:

A discrete-time system has the following unit-pulse response:

for

Correspondingly, the following difference equation describes the behavior of the system:

Use the Matlab command conv to calculate the response of the system to a unit step input, x[n]=u[n]. Consider . Show what you type into the Matlab command window. Also, submit a plot of the output. Be sure to label your axes.

Matlab Tip: Remember that you can easily get help on a command in Matlab by typing help with the command at the prompt:

EDU>>help conv

EDU>>n=[0:20];

then the first term of the unit-pulse response is written as 0.5.^n

Matlab Tip: Sometimes it is useful to know the size of arrays you have created. This can be done in several ways. For example, you can use the command size:

EDU>> size(n)

ans =

1 21

The size of the array is returned. In this case, the array n has a size of 1 row by 21 columns.

Use the Matlab function recur to calculate the response of the system to a unit step input, x[n]=u[n]. Again consider . Show all that you type into the Matlab command window. Submit a plot of the output with the axes labeled.

The Matlab function recur is not a function which comes with Matlab or any of the toolboxes you have installed. Instead, it is a that must be added to your Matlab directory.

The Matlab function recur can be found in a zip file at the Mathworks site at the following location:

http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=2148

Extract the file recur.m to the current directory shown at the top of the Matlab window.

On the other hand, you can copy and paste the script below into a text file like Notepad and save it as recur.m in the current directory shown at the top of the Matlab window.

function y = recur(a,b,n,x,x0,y0);

% y = recur(a,b,n,x,x0,y0)

% solves for y[n] from:

% y[n] + a1*y[n-1] + a2*y[n-2]... + an*y[n-N]

% = b0*x[n] + b1*x[n-1] + ... + bm*x[n-M]

% a, b, n, x, x0 and y0 are vectors

% a = [a1 a2 ... aN]

% b = [b0 b1 ... bM]

% n contains the time values for which the solution will be computed

% y0 contains the initial conditions for y, in order,

% i.e., y0 = [y[n0-N], y[n0-N+1], ...,y[n0-1]]

% where n0 represents the first element of n

% x0 contains the initial conditions on x, in order

% i.e., x0 = [x[n0-M],...,x[n0-1]]

% the output, y, has length(n)

N = length(a);

M = length(b)-1;

if length(y0) ~= N,

error('Lengths of a and y0 must match')

end

if length(x0) ~= M,

error('Length of x0 must match length of b-1')

end

y = [y0 zeros(1,length(n))];

x = [x0 x];

a1 = a(length(a):-1:1); % reverses the elements in a

b1 = b(length(b):-1:1);

for i=N+1:N+length(n),

y(i) = -a1*y(i-N:i-1)' + b1*x(i-N:i-N+M)';

end

y = y(N+1:N+length(n));

To get information on how to use the function, at the Matlab prompt, type:

EDU>>help recur

It might be helpful to change the index of the difference equation such that the highest index is n rather than n+2.

Are your plots the same? If not, why not?

**PLEASE SEE ATTACHMENT**

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Question : 61. (p. 39) Which of the following true regarding VERs? A. International regulatory bodies set : 1242191

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