Tag: Economics – Others

a. The 1995-2010 increase in the trend rate of productivity growth has beenpositively influenced by information technology because it connects information in all parts of the world with information seekers.positively influenced by information technology because it has enabled us to install cameras everywhere.negatively influenced by information technology because it has required security to protect information systems.negatively influenced by information technology because it has increased the costs for firms needing technology.
b. The 1995-2010 increase in the trend rate of productivity growth has beennegatively influenced by information economies of scale because it has required security to protect information systems.positively influenced by information economies of scale because expanding production has a very low marginal cost.positively influenced by information economies of scale because it has enabled us to encourage mergers.negatively influenced by information economies of scale because it has increased the costs for firms needing technology.
c. The 1995-2010 increase in the trend rate of productivity growth has beenpositively influenced by network effects, which is a type of scale economy.negatively influenced by network effects, which is a type of scale diseconomy.positively influenced by network effects, which is a type of scale diseconomy.negatively influenced by network effects, which is a type of scale economy.
d. The 1995-2010 increase in the trend rate of productivity growth has beenpositively influenced by global competition, which has limited market possibilities for both consumers and producers.positively influenced by global competition, which has expanded market possibilities for both consumers and producers.negatively influenced by global competition, which has expanded market possibilities for both consumers and producers.negatively influenced by global competition, which has limited market Dossibilities for both consumers and producers.

Income elasticity of demand is
Part 2
A. the percentage change in quantity demanded of one good divided by the percentage change in the price of another good.
B. the percentage change in quantity supplied divided by the percentage change in price.
C. the percentage change in income divided by the percentage change in prices.
D. the percentage change in quantity demanded divided by the percentage change in price.
E. the percentage change in quantity demanded divided by the percentage change in income.
Part 3
Use income elasticity to distinguish a normal good from an inferior good.
Part 4
For a normal good, the income elasticity of demand will be
Part 5
A. positive, but for an inferior good, the income elasticity of demand will be negative.
B. positive or negative, but for an inferior good, the income elasticity will be zero.
C. zero, but for an inferior good, the income elasticity will be one.
D. negative, but for an inferior good, the income elasticity of demand will be positive.
E. inelastic, but for an inferior good, the income elasticity will be elastic.
Part 6
Is it possible to tell from the income elasticity of demand whether a product is a luxury good or a necessity?
Part 7
A. No. It is not possible to tell from the income elasticity of demand whether a good is a luxury or a necessity.
B. Yes. If the income elasticity of demand is greater than 1, then the good is a necessity. If the income elasticity of demand is positive but less than 1, then the good is a luxury.
C. Yes. If the income elasticity of demand is greater than1010, then the good is a luxury. If the income elasticity of demand is positive but less than1010, then the good is a necessity.
D. Yes. If the income elasticity of demand is positive, then the good is a necessity. If the income elasticity of demand is negative, then the good is a luxury.
E. Yes. If the income elasticity of demand is greater than 1, then the good is a luxury. If the income elasticity of demand is positive but less than 1, then the good is a necessity.

If one model was perfect, everyone would use that model. Since none are perfect, use this discussion to explore some of the more common models and the pros and cons of these models.You have been introduced to multiple money models in this module. Pick the model you think is the best and explain your reasoning.
– dynamic model: a model that allows variables to change over time; a model in which actions that occur at one time affect what happens atother times
– general-equilibrium model: a model in which all the key macroeconomic variables, such as the nominal interest rate, are endogenous; a model in which all prices are endogenous in markets where individuals or firms make a choice that affects the supply or demand in those markets
– liquidity-preference model: a model in which money demand and supply determine the nominal interest rate
– partial-equilibrium model: a model in which some key macroeconomic variables, such as the nominal interest rate, are exogenous; a model in which individuals or firms make a choice that affects the supply or demand in a market whose price is exogenous
– static model: a model that does not allow variables to change over time; a model that focuses on what is happening at just one point in time
What are the strengths and weaknesses of this model?
– large structural macroeconomic models: models with many equations that describe the economy in great detail; the models are based on the assumption that their equations do not change over time
What other models did you consider most closely and why? Do you think the model you chose is completely accurate? Support your claim about the accuracy of the model with data. write 3 to 4 paragraphs

Fire Dragon Co. is a hot sauce producer and distributor operating a monopoly in Heatopia. Assume that Fire Dragon is not able price discriminate, and so it sells its hot sauce to all customers at the same price per bottle. The following graph gives the marginal cost (MC), marginal revenue (MR), average total cost (ATC), and demand (D) curves that Fire Dragon faces for hot sauce in Heatopia.Place the black point (plus symbol) on the graph to indicate the profit-maximizing price and quantity for Fire Dragon. If Fire Dragon is making a profit, use the green rectangle (triangle symbols) to shade in the area representing its profit. On the other hand, if Fire Dragon is suffering a loss, use the purple rectangle (diamond symbols) to shade in the area representing its loss.
Suppose Fire Dragon charges \( \$ 2.00 \) per bottle. Your classmate Chris says that because Fire Dragon is a monopoly with market power, it should charge the higher price of \( \$ 2.25 \) per bottle in order to increase its profit. Complete the following table to determine whether Chris is correct.
Price (Dollars per bottle)
Quantity Demanded (Cans)
Total Revenue (Dollars)
Total Cost (Dollars)
Profit (Dollars)
Given the earlier information, Chris . correct in his assertion that Fire Dragon should charge \( \$ 2.25 \) per bottle.
Suppose that a technological innovation decreases Fire Dragon’s costs so that it now faces the marginal cost (MC) and average total cost (ATC) given on the following graph. Specifically, the technological innovation causes a decrease in average fixed costs, thereby lowering the ATC curve and moving the MC curve. Place the black point (plus symbol) on the following graph to indicate the profit-maximizing price and quantity for Fire Dragon. If Fire Dragon is making a profit, use the green rectangle (triangle symbols) to shade in the area representing its profit. On the other hand, if Fire Dragon is suffering a loss, use the purple rectangle (diamond symbols) to shade in the area representing the loss.

New Classical economists take a fundamentally different view of short-run dynamics. They assert that markets are self-correcting, even in the short term, due to the presence of rational expectations and fully flexible wages and prices. Under this framework, firms and workers anticipate economic changes and adjust their behaviour accordingly. This preemptive adjustment means that monetary or demand shocks have little to no effect on real variables like output or employment. Instead, only real changes such as improvements in technology or shifts in the labour force that can influence output and employment. The New Classical model assumes that markets clear continuously, so any unemployment is either frictional or voluntary. Consequently, short-run economic fluctuations are viewed as temporary and largely irrelevant in terms of real outcomes. In addition, they do acknowledge that if there is a surprising and unexpected monetary policy which increases the money supply, it may cause a temporary deviation in output and employment. However, this effect does not last long because people will quickly realize and adjust the expectations. From a long-run perspective, New Classical economists argue that employment and output are determined exclusively by supply-side factors. Increases in productivity, capital accumulation, and labour force participation enhance the economy’s capacity to produce goods and services. They also believe that policies which incentivize work, saving, and investment can raise long-term economic performance. Crucially, they uphold the concept of monetary neutrality, asserting that neither fiscal nor monetary policy can affect real output or employment in the long run. The long-run aggregate supply curve is considered vertical, reflecting the idea that output is fixed at its natural level, determined by resource availability and technology. Any policy that solely influences demand will only affect the price level, not the real economy. Thus, growth is determined by changes in real factors, and not nominal ones. draw the SR and LR graph for goods and labour market
Interpretation: An unexpected monetary expansion shifts AD right. In the short run (SRAS upward-sloping due to surprises), output and employment can rise temporarily (E2). In the long run, expectations adjust and output returns to the natural level Y_n while only the price level rises (LRAS vertical).
Interpretation: An unexpected demand for labour (e.g., from higher production) can raise employment and real wages in the short run. Because markets clear and expectations/wages adjust, employment returns to its natural level L_n in the long run (vertical LR supply).

(i)
To study the effects of the incinerator location on housing price, consider the simple regression model: log(price) = β0 + β1 log(dist) + u.
True or False: A positive sign is expected for β1 if the presence of the incinerator depresses housing prices.
True
False
The estimated equation is u017Flog(price) = u017Fβ0 + u017Fβ1 log(dist).
The coefficient on log(dist) indicates that a 1% increase in the distance from the house to the incinerator (holding all other independent variables fixed) changes the predicted selling price of a house on average by approximately ____.
(ii)
To the simple regression model in part (i), add the variables log(intst), log(area), log(land), rooms, baths, and age, where intst is distance from the home to the interstate, area is square footage of the house, land is the lot size in square feet, rooms is total number of rooms, baths is number of bathrooms, and age is age of the house in years.
The new estimated equation is u017Flog(price) = u017Fβ0 + u017Fβ1 log(dist) + u017Fβ2 log(intst) + u017Fβ3 log(area) + u017Fβ4 log(land) + u017Fβ5 rooms + u017Fβ6 baths + u017Fβ7 age.
The effect of the incinerator on the selling price of a house is than in the model from part (i) and statistically significant at the 5% significance level.
True or False: It can be assumed that the coefficient on log(dist) becomes statistically insignificant due to the incorrect functional form.
True
False
(iii)
Add [log(intst)]^2 to the model from part (ii).
The estimated equation is u017Flog(price) = u017Fβ0 + u017Fβ1 log(dist) + u017Fβ2 log(intst) + u017Fβ3 [log(intst)]^2 + u017Fβ4 log(area) + u017Fβ5 log(land) + u017Fβ6 rooms + u017Fβ7 baths + u017Fβ8 age.
After adding [log(intst)]^2 to the model from part (ii), the effect of the incinerator on the selling price of a house statistically significant at the 5% significance level.
True or False: Model (iii) is preferred over model (ii) based on the F test.
True
False

DONT ANSWER THESE MCQS THEY ARE ALREADY ANSWERED. I WOULD LIKE YOU TO IDENTIFY WHAT TEST BANKS THESE QUESTIONS ARE FROM.
(a) Using the Mundell Fleming model, compare the effectiveness of fiscal and monetary policy when an economy has free capital flows and fixed exchange rates. You must draw a graph or diagram and explain for full credit. (7 marks)
(b) Keeping the situation in (a), compare the effectiveness of fiscal and monetary policy when the IS curve becomes completely flat. You must draw a graph or diagram and explain for full credit. (5 marks).
Do part b, no need to do part a.
Banks decide to raise the interest rate they pay on checking accounts from 1% to 2%. This action would Points:0/1
decrease money demand, shifting the LM curve up and to the left.
increase money demand, shifting the LM curve up and to the left.
decrease money demand, shifting the LM curve down and to the right.
increase money demand, shifting the LM curve down and to the right.
The probably effect of introducing an increased number of automatic teller machines is to Points:11
decrease money demand, shifting the LM curve down and to the right.
increase money demand, shifting the LM curve down and to the right.
decrease money demand, shifting the LM curve up and to the left.
increase money demand, shifting the LM curve up and to the left.
What adjusts to restore general equilibrium after a shock to the economy?
The FE line
The IS curve
The labor supply curve
The LM curve
-14. A temporary supply shock, such as an increase in oil prices, would Points:
have no effect on the IS curve.
1/1 shift the IS curve up and to the right, but leave the FE line unchanged.
shift the IS curve down and to the left and shift the FE line to the left.
shift the IS curve down and to the left and leave the FE line unchanged.
15. Which market adjusts the quickest in response to shocks to the economy? Points:
The asset, labor, and goods markets adjust at about the same speed 1/1 to eliminate a disequilibrium in the macroeconomy.
The asset market
The labor market
The goods market
A country’s balance of payments is sometimes incorrectly said to be

The market level (inverse) demand for a product is given by p(q)=12000-2q. Suppose that any firm in this market has a fixed cost of $1,000,000, and zero marginal cost.
1. The market for this product is a duopoly where firms compete on quantities. Firms’ take decisions simultaneously.
1.1. What is the optimal output for firm 1 in equilibrium?
1.2. What is the aggregate output in equilibrium?
1.3. What is the price in equilibrium?
1.4. What is firm 1’s profit in equilibrium?
1.5. Is there any deadweight loss compared to the aggregate output that maximizes social surplus? If so, compute it.
The market level (inverse) demand for a product is given by p(q)=12000-2q. Suppose that any firm in this market has a fixed cost of $1,000,000, and zero marginal cost.
2. The market for this product is a duopoly where firms compete on quantities. Firm 1 is the leader and firm 2 is the follower.
2.1. What is the optimal output for firm 1 in equilibrium?
2.2. What is the aggregate output in equilibrium?
2.3. What is the price in equilibrium?
2.4. What is firm 1’s profit in equilibrium?
2.5. Is there any deadweight loss compared to the aggregate output that maximizes social surplus? If so, compute it.
The market level (inverse) demand for a product is given by p(q)=12000-2q. Suppose that any firm in this market has a fixed cost of $1,000,000, and zero marginal cost.
3. The market for this product is structured as a monopoly.
3.1. What is the optimal level of output?
3.2. What is the monopolist markup over their marginal cost?
3.3. What is the price elasticity of demand at the optimal level of output?
3.4. What is the monopolist profit?
3.5. Is there any deadweight loss compared to the aggregate output that maximizes social surplus? If so, compute it.

Consider a three-period model of intertemporal consumption.
Suppose the representative consumer has the following lifetime utility function:
V = c + c′ + c′′
The consumer’s consumption must satisfy the following budget constraints each period:
Period 1: c + s1 = y
Period 2: c′ + s2 = y′ + (1 + r1) s1
Period 3: c′′ = y′′ + (1 + r2) s2
where c, c′, c′′ represent the consumer’s consumption in the first, second, and third period, respectively, and s1 and s2 represent her savings in period 1 and period 2. y, y′, y′′ are exogenously given income in each period, respectively. r1 and r2 are the exogenously given real interest rates the consumer faces when considering saving or borrowing in periods one and two, respectively.
Question 12.1 Q12.11 PointGrading comment: How does the consumer’s given lifetime utility function reflect her level of patience?
The consumer values future consumption more than current consumption.
The consumer values current consumption more than future consumption.
The consumer does not discount future consumption at all.
The implication varies depending on the given values of the real interest rates.
Save Answer
Question 12.1: Last saved on May 19 at 3:21 PM
Question 12.2 Q12.21 PointGrading comment: Find the consumer’s lifetime budget constraint.
The following multiple-choice options contain math elements, so you may need to read them in your screen reader’s “reading” or “browse” mode instead of “forms” or “focus” mode.
c + 1/(1 + r1) c′ + 1/((1 + r1)(1 + r2)) c′′ = y + 1/(1 + r1) y′ + 1/((1 + r1)(1 + r2)) y′′
c + 1/(1 + r2) c′ + 1/((1 + r1)(1 + r2)) c′′ = y + 1/(1 + r2) y′ + 1/((1 + r1)(1 + r2)) y′′
c + (1 + r1) c′ + (1 + r1)(1 + r2) c′′ = y + (1 + r1) y′ + (1 + r1)(1 + r2) y′′
c + (1 + r2) c′ + (1 + r1)(1 + r2) c′′ = y + (1 + r2) y′ + (1 + r1)(1 + r2) y′′

6. Working with Numbers and Graphs Q9
The following table summarizes the combinations of goods X and Y that two individuals, Nicki and Kamal, can each produce individually. If each person specializes in the production of the good for which they have the comparative advantage, then would specialize in the production of good \( Y \), and would specialize in the production of good \( X \). (Hint: Calculate the opportunity cost of producing \( X \) and \( Y \) for each individual.) Suppose that Kamal and Nicki each specializes in the production of the good in which each has a comparative advantage. Fill in the top row of the following table to indicate Kamal’s and Nicki’s output of each good. After specialization, suppose the two agree on a price of 9 units of good X for each unit of good Y . When the two individuals make the trade, they exchange 90 units of good \( X \) for 10 units of good \( Y \). Recall that the individual who has specialized in the production of \( X \) would trade 90 units of good \( X \) and receive 10 units of good \( Y \), while the individual who specialized in the production of good \( Y \) would trade 10 units of good \( Y \) and receive 90 units of good \( X \). In the previous table, fill in the second row to indicate the amounts of good \( X \) and good \( Y \) each individual has after the trade.
The following graphs plot Nicki’s production possibilities frontier (PPF) in purple and Kamal’s PPF in blue, respectively. Using the second row of the previous table, plot Nicki’s new combination of \( X \) and \( Y \) with the grey point (star symbol). Using the second row of the previous table, plot Kamal’s new combination of \( X \) and \( Y \) with the tan point (dash symbol).
True or False: This combination of \( X \) and \( Y \) was already attainable to these individuals before the trade. True False