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Questions and Answers
What do flows (2) and (3) represent?
What do flows (2) and (3) represent?
What is the price elasticity of demand when the price increases from R7 to R9?
What is the price elasticity of demand when the price increases from R7 to R9?
What is the unit of measurement for the output of the farm?
What is the unit of measurement for the output of the farm?
What is the main goal of calculating the average product and marginal product of a farm?
What is the main goal of calculating the average product and marginal product of a farm?
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What is the relationship between the price and quantity demanded of a product?
What is the relationship between the price and quantity demanded of a product?
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What is the purpose of calculating the price elasticity of demand?
What is the purpose of calculating the price elasticity of demand?
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What is the Total Product when 2 units of capital and 3 units of labour are used?
What is the Total Product when 2 units of capital and 3 units of labour are used?
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At which point does the Average Product start to decline?
At which point does the Average Product start to decline?
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What is the Marginal Product when 2 units of capital and 7 units of labour are used?
What is the Marginal Product when 2 units of capital and 7 units of labour are used?
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Which diagram shows a rightward shift of the demand curve and a leftward shift of the supply curve?
Which diagram shows a rightward shift of the demand curve and a leftward shift of the supply curve?
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What is the likely outcome in the market for product B if the price fails to adjust to the new equilibrium?
What is the likely outcome in the market for product B if the price fails to adjust to the new equilibrium?
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What is the cause of the shift in the supply curve from S1 to S2?
What is the cause of the shift in the supply curve from S1 to S2?
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What is the direction of the shift in the demand curve?
What is the direction of the shift in the demand curve?
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What is the result of the increase in production costs and decrease in incomes?
What is the result of the increase in production costs and decrease in incomes?
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What is Dairy Group's primary goal?
What is Dairy Group's primary goal?
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What is the consequence of people's concern about gaining weight from drinking full cream milk?
What is the consequence of people's concern about gaining weight from drinking full cream milk?
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What is the market structure of the Balloon manufacturers shown in the diagram?
What is the market structure of the Balloon manufacturers shown in the diagram?
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What is the maximum economic profit (or minimum economic loss) for the firm in the diagram?
What is the maximum economic profit (or minimum economic loss) for the firm in the diagram?
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What is the opportunity cost of Steven using his own premises as a workshop?
What is the opportunity cost of Steven using his own premises as a workshop?
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What is the alternative income that Steven could have earned if he had invested his money?
What is the alternative income that Steven could have earned if he had invested his money?
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What is the amount Steven initially invested in his business to buy tools and machines?
What is the amount Steven initially invested in his business to buy tools and machines?
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What is the salary that Steven could have earned if he did not work for himself?
What is the salary that Steven could have earned if he did not work for himself?
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What happens to the market when the average salary in South Africa declines?
What happens to the market when the average salary in South Africa declines?
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What is the effect of a decrease in James's salary on the demand of chicken liver?
What is the effect of a decrease in James's salary on the demand of chicken liver?
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What happens in the long run in a perfectly competitive market?
What happens in the long run in a perfectly competitive market?
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What is the role of Dairy Group in South Africa?
What is the role of Dairy Group in South Africa?
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What is the effect of a decrease in salaries on disposable income?
What is the effect of a decrease in salaries on disposable income?
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What is the impact of a decrease in salaries on debt?
What is the impact of a decrease in salaries on debt?
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What is the definition of an inferior good?
What is the definition of an inferior good?
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What happens to the market supply curve in the long run?
What happens to the market supply curve in the long run?
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Which movement reflects a decrease in quantity demanded but NOT a decrease in demand?
Which movement reflects a decrease in quantity demanded but NOT a decrease in demand?
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What part of the MC curve can be seen as the firm's supply curve?
What part of the MC curve can be seen as the firm's supply curve?
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At the profit maximizing price and output, the firm in Exhibit 23-3 has an average profit of _______ and a total profit of ________.
At the profit maximizing price and output, the firm in Exhibit 23-3 has an average profit of _______ and a total profit of ________.
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The profit maximizing firm in Figure 25.1 would produce _______ units of output.
The profit maximizing firm in Figure 25.1 would produce _______ units of output.
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What is the difference between a decrease in quantity demanded and a decrease in demand?
What is the difference between a decrease in quantity demanded and a decrease in demand?
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What does the marginal cost curve represent?
What does the marginal cost curve represent?
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Study Notes
Demand and Supply
- Flows (1) and (2) represent income and spending respectively.
Elasticity of Demand
- Price elasticity of demand is calculated when price decreases from R9 to R7.
- The correct answer is 1.60.
Law of Diminishing Returns
- The law of diminishing returns sets in at the fifth unit of labour.
Demand and Supply Shift
- If the costs of production rise and incomes fall, the demand curve shifts to the left and the supply curve shifts to the left.
Market Equilibrium
- If the supply curve shifts from S1 to S2, but the price fails to adjust, there will be an excess demand in the market.
Inferior Goods
- A decrease in James's salary will lead to an increase in the demand for chicken liver, which is an inferior good.
Perfect Competition
- In the long run, new firms enter the industry, causing the market supply curve to shift to the right, until prices drop sufficiently to allow all firms to make a normal profit.
Market for Full Cream Milk
- People's concern about weight gain from drinking full cream milk leads to a shift in the demand curve from D1 to D2.
Pure Competition
- The maximum economic profit (or minimum economic loss) for the firm is a profit of R60.
Economic Profit
- Steven's opportunity cost includes R18,000 in rent and R5,000 in interest, and a salary of R60,000.
Demand and Quantity Demanded
- A movement from point a to point d reflects a decrease in quantity demanded but not a decrease in demand.
Supply Curve
- The rising part of the MC curve above the minimum point can be seen as the firm's supply curve.
Profit Maximization
- At the profit maximizing price and output, the firm has an average profit of $40 and a total profit of 1700.
Profit Maximizing Firm
- The profit-maximizing firm would produce slightly less than 90 units of output.
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