Monopsonistic Markets
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AP Microeconomics › Monopsonistic Markets
Based on the monopsonistic labor market shown in the table, a single agricultural processor is the only major employer of packers in a rural county. The labor supply to the firm is upward sloping, so MFC exceeds the wage. The processor’s MRP schedule is shown. How many workers does the monopsonist hire and at what wage?
Monopsony labor market data
| Workers (L) | Wage ($/hour) | MFC ($/hour) | MRP ($/hour) |
|---|---|---|---|
| 1 | 13 | 13 | 32 |
| 2 | 14 | 15 | 30 |
| 3 | 15 | 17 | 28 |
| 4 | 16 | 19 | 26 |
| 5 | 17 | 21 | 24 |
| 6 | 18 | 23 | 22 |
| 7 | 19 | 25 | 20 |

Hire 6 workers and pay $23 per hour
Hire 7 workers and pay $19 per hour
Hire 6 workers and pay $18 per hour
Hire 5 workers and pay $24 per hour
Hire 5 workers and pay $17 per hour
Explanation
This question illustrates monopsonistic behavior in an agricultural processing facility. A monopsony is a market with a single buyer of labor facing an upward-sloping labor supply curve, where each additional worker requires a higher wage for all workers. The fundamental concept is that MFC (marginal factor cost) exceeds the wage because hiring one more worker means paying the higher wage to all previously hired workers. The monopsonist maximizes profit where MRP = MFC, but examining the data reveals at 5 workers, MRP ($24) > MFC ($21), while at 6 workers, MRP ($22) < MFC ($23). Students often erroneously seek exact equality, but when there's no perfect match, the firm hires the last unit where MRP exceeds MFC. The transferable strategy is to locate where MRP last exceeds or equals MFC (5 workers), then find the corresponding wage from the labor supply curve ($17 per hour).
Based on the monopsonistic labor market shown in the table, a single theme park is the only significant employer of ride operators in a small region. The labor supply to the firm is upward sloping, so MFC exceeds the wage. The theme park’s MRP schedule is shown. How many workers does the monopsonist hire and at what wage?
Monopsony labor market data
| Workers (L) | Wage ($/hour) | MFC ($/hour) | MRP ($/hour) |
|---|---|---|---|
| 1 | 10 | 10 | 27 |
| 2 | 11 | 12 | 25 |
| 3 | 12 | 14 | 23 |
| 4 | 13 | 16 | 21 |
| 5 | 14 | 18 | 19 |
| 6 | 15 | 20 | 17 |
| 7 | 16 | 22 | 15 |

Hire 6 workers and pay $15 per hour
Hire 7 workers and pay $16 per hour
Hire 5 workers and pay $14 per hour
Hire 6 workers and pay $20 per hour
Hire 5 workers and pay $19 per hour
Explanation
This problem tests understanding of monopsonistic labor markets at a theme park. A monopsony exists when there's a single employer facing an upward-sloping labor supply, requiring progressively higher wages to attract additional workers. The key principle is that MFC (marginal factor cost) exceeds the wage because the employer must pay the new higher wage to all workers, creating a wedge between wage and MFC. The profit-maximizing monopsonist hires where $ \text{MRP} = \text{MFC} $, and the table shows at 5 workers, $ \text{MRP (19)} > \text{MFC (18)} $, while at 6 workers, $ \text{MRP (17)} < \text{MFC (20)} $. A common misconception is looking for exact $ \text{MRP} = \text{MFC} $ equality, but when there's no perfect intersection, the firm hires up to where $ \text{MRP} \geq \text{MFC} $ (5 workers), then read the wage from the supply schedule ($14 per hour).
Based on the monopsonistic labor market shown in the table below (a single warehouse is the only large employer for forklift operators in the area), how many workers does the monopsonist hire and at what wage? Assume the warehouse hires where $MRP = MFC$ and pays the wage on the labor supply curve at that level of employment.
Table: Labor Supply to the Firm and Marginal Factor Cost
| Operators hired (L) | Wage ($/hour) | MFC ($/hour) |
|---|---|---|
| 1 | 14 | 14 |
| 2 | 15 | 16 |
| 3 | 16 | 18 |
| 4 | 17 | 20 |
| 5 | 18 | 22 |
| 6 | 19 | 24 |
The warehouse’s marginal revenue product (MRP) schedule is: $MRP(1)=26$, $MRP(2)=24$, $MRP(3)=22$, $MRP(4)=20$, $MRP(5)=18$, $MRP(6)=16$.

Hire 5 operators and pay $18 per hour.
Hire 5 operators and pay $22 per hour.
Hire 4 operators and pay $17 per hour.
Hire 3 operators and pay $16 per hour.
Hire 4 operators and pay $20 per hour.
Explanation
This question tests your understanding of monopsonistic labor markets. A monopsony is a market structure where a single buyer, here the warehouse, dominates the demand for labor and faces an upward-sloping labor supply curve, requiring higher wages to attract additional operators. The marginal factor cost (MFC) is greater than the wage because hiring one more operator means raising the wage for all operators employed. The monopsonist hires where the marginal revenue product (MRP) equals MFC, resulting in 4 operators at a wage of $17 per hour read from the supply curve. A common misconception is treating the monopsonist as a wage taker in a competitive market, setting MRP equal to wage, which would incorrectly suggest hiring more. A transferable strategy is to find the quantity where MRP equals MFC, such as at 4 operators where both are $20. Then, read the wage directly from the supply curve at that employment level.
Based on the monopsonistic labor market shown in the table below (a single warehouse is the only large employer for forklift operators in the area), how many workers does the monopsonist hire and at what wage? Assume the warehouse hires where $MRP = MFC$ and pays the wage on the labor supply curve at that level of employment.
Table: Labor Supply to the Firm and Marginal Factor Cost
| Operators hired (L) | Wage ($/hour) | MFC ($/hour) |
|---|---|---|
| 1 | 14 | 14 |
| 2 | 15 | 16 |
| 3 | 16 | 18 |
| 4 | 17 | 20 |
| 5 | 18 | 22 |
| 6 | 19 | 24 |
The warehouse’s marginal revenue product (MRP) schedule is: $MRP(1)=26$, $MRP(2)=24$, $MRP(3)=22$, $MRP(4)=20$, $MRP(5)=18$, $MRP(6)=16$.

Hire 3 operators and pay $16 per hour.
Hire 4 operators and pay $20 per hour.
Hire 5 operators and pay $18 per hour.
Hire 4 operators and pay $17 per hour.
Hire 5 operators and pay $22 per hour.
Explanation
This question tests your understanding of monopsonistic labor markets. A monopsony is a market structure where a single buyer, here the warehouse, dominates the demand for labor and faces an upward-sloping labor supply curve, requiring higher wages to attract additional operators. The marginal factor cost (MFC) is greater than the wage because hiring one more operator means raising the wage for all operators employed. The monopsonist hires where the marginal revenue product (MRP) equals MFC, resulting in 4 operators at a wage of $17 per hour read from the supply curve. A common misconception is treating the monopsonist as a wage taker in a competitive market, setting MRP equal to wage, which would incorrectly suggest hiring more. A transferable strategy is to find the quantity where MRP equals MFC, such as at 4 operators where both are $20. Then, read the wage directly from the supply curve at that employment level.
Based on the monopsonistic labor market shown in the table below (a single logging company is the only employer of equipment operators in the region), how many workers does the monopsonist hire and at what wage? Assume the company hires where $MRP = MFC$ and pays the wage on the labor supply curve at that employment level.
Table: Labor Supply to the Firm and Marginal Factor Cost
| Operators hired (L) | Wage ($/hour) | MFC ($/hour) |
|---|---|---|
| 1 | 18 | 18 |
| 2 | 19 | 20 |
| 3 | 20 | 22 |
| 4 | 21 | 24 |
| 5 | 22 | 26 |
| 6 | 23 | 28 |
The company’s marginal revenue product (MRP) schedule is: $MRP(1)=30$, $MRP(2)=28$, $MRP(3)=26$, $MRP(4)=24$, $MRP(5)=22$, $MRP(6)=20$.

Hire 3 operators and pay $20 per hour.
Hire 4 operators and pay $21 per hour.
Hire 5 operators and pay $26 per hour.
Hire 4 operators and pay $24 per hour.
Hire 5 operators and pay $22 per hour.
Explanation
This question tests your understanding of monopsonistic labor markets. A monopsony is a market structure where a single buyer, here the logging company, dominates the demand for labor and faces an upward-sloping labor supply curve, requiring higher wages to attract additional operators. The marginal factor cost (MFC) is greater than the wage because hiring one more operator means raising the wage for all operators employed. The monopsonist hires where the marginal revenue product (MRP) equals MFC, resulting in 4 operators at a wage of $21 per hour read from the supply curve. A common misconception is treating the monopsonist as a wage taker in a competitive market, setting MRP equal to wage, which would incorrectly suggest hiring more. A transferable strategy is to find the quantity where MRP equals MFC, such as at 4 operators where both are $24. Then, read the wage directly from the supply curve at that employment level.
Based on the monopsonistic labor market shown in the table, a single hotel is the only large employer of housekeepers in a resort town during the off-season. The labor supply to the firm is upward sloping, so MFC exceeds the wage. The hotel’s MRP schedule is shown. How many workers does the monopsonist hire and at what wage?
Monopsony labor market data
| Workers (L) | Wage ($/hour) | MFC ($/hour) | MRP ($/hour) |
|---|---|---|---|
| 1 | 11 | 11 | 28 |
| 2 | 12 | 13 | 26 |
| 3 | 13 | 15 | 24 |
| 4 | 14 | 17 | 22 |
| 5 | 15 | 19 | 20 |
| 6 | 16 | 21 | 18 |

Hire 5 workers and pay $19 per hour
Hire 5 workers and pay $15 per hour
Hire 4 workers and pay $22 per hour
Hire 4 workers and pay $14 per hour
Hire 6 workers and pay $16 per hour
Explanation
This problem illustrates monopsonistic behavior in a hotel labor market during off-season. A monopsony occurs when a single employer faces an upward-sloping labor supply, meaning higher wages are needed to attract additional workers. The fundamental principle is that MFC (marginal factor cost) exceeds the wage because the employer must pay the new higher wage to all employees, not just the marginal worker. The profit-maximizing monopsonist hires where $ \text{MRP} = \text{MFC} $, but the table shows at 5 workers, $ \text{MRP (20)} > \text{MFC (19)} $, while at 6 workers, $ \text{MRP (18)} < \text{MFC (21)} $. A common error is assuming exact equality is required, but when there's no perfect intersection, the firm hires up to where MRP still exceeds MFC. The key strategy is to find the last worker where $ \text{MRP} \geq \text{MFC} $ (5 workers), then read the wage from the supply curve ($15 per hour).
Based on the monopsonistic labor market shown in the table, a single nursing home is the only major employer of certified nursing assistants in a rural town. The nursing home faces an upward-sloping labor supply, so its marginal factor cost (MFC) exceeds the wage. The nursing home’s marginal revenue product (MRP) of labor schedule is also shown. How many workers does the monopsonist hire and at what wage?
Monopsony labor market data
| Workers (L) | Wage ($/hour) | MFC ($/hour) | MRP ($/hour) |
|---|---|---|---|
| 1 | 10 | 10 | 34 |
| 2 | 11 | 12 | 30 |
| 3 | 12 | 14 | 26 |
| 4 | 13 | 16 | 22 |
| 5 | 14 | 18 | 18 |
| 6 | 15 | 20 | 14 |

Hire 6 workers and pay $15 per hour
Hire 4 workers and pay $22 per hour
Hire 5 workers and pay $14 per hour
Hire 5 workers and pay $18 per hour
Hire 4 workers and pay $13 per hour
Explanation
This question tests your understanding of monopsonistic labor markets. A monopsony is a market with a single buyer of labor, facing an upward-sloping labor supply curve where each additional worker requires a higher wage for all workers. The key insight is that marginal factor cost (MFC) exceeds the wage because hiring one more worker means paying the higher wage to all previously hired workers. The monopsonist maximizes profit by hiring where $MRP = MFC$, which occurs at 5 workers where both equal $18. A common misconception is thinking the monopsonist pays the MFC value as the wage, but they actually pay the wage from the supply curve. The transferable strategy is: find where $MRP = MFC$ for the employment level, then read the corresponding wage from the labor supply schedule—here, 5 workers at $14 per hour.
Based on the monopsonistic labor market shown in the table, a single distribution warehouse is the only major employer of forklift operators in the area. The labor supply to the firm is upward sloping, so MFC exceeds the wage. The warehouse’s MRP schedule is shown. How many workers does the monopsonist hire and at what wage?
Monopsony labor market data
| Workers (L) | Wage ($/hour) | MFC ($/hour) | MRP ($/hour) |
|---|---|---|---|
| 1 | 16 | 16 | 45 |
| 2 | 17 | 18 | 41 |
| 3 | 18 | 20 | 37 |
| 4 | 19 | 22 | 33 |
| 5 | 20 | 24 | 29 |
| 6 | 21 | 26 | 25 |
| 7 | 22 | 28 | 21 |

Hire 7 workers and pay $22 per hour
Hire 6 workers and pay $26 per hour
Hire 6 workers and pay $21 per hour
Hire 5 workers and pay $29 per hour
Hire 5 workers and pay $20 per hour
Explanation
This question examines monopsonistic decision-making for a distribution warehouse. A monopsony is characterized by a single buyer of labor facing an upward-sloping labor supply curve, where attracting more workers requires raising wages for all employees. The crucial insight is that MFC (marginal factor cost) exceeds the wage because hiring an additional worker means paying the higher wage to all workers. The monopsonist maximizes profit where MRP = MFC, and examining the data shows at 5 workers, MRP ($29) > MFC ($24), but at 6 workers, MRP ($25) < MFC ($26). Students often mistakenly think the firm must find exact equality, but when there's no perfect match, the firm hires the last unit where MRP exceeds MFC. The transferable approach is to identify where MRP last exceeds or equals MFC (5 workers), then read the corresponding wage from the labor supply schedule ($20 per hour).
Based on the monopsonistic labor market shown in the table, a single logging company is the only buyer of seasonal labor in a remote area. The labor supply to the firm is upward sloping, so MFC exceeds the wage. The firm’s MRP of labor is also given. How many workers does the monopsonist hire and at what wage?
Monopsony labor market data
| Workers (L) | Wage ($/day) | MFC ($/day) | MRP ($/day) |
|---|---|---|---|
| 1 | 80 | 80 | 170 |
| 2 | 90 | 100 | 150 |
| 3 | 100 | 120 | 130 |
| 4 | 110 | 140 | 110 |
| 5 | 120 | 160 | 90 |

Hire 3 workers and pay $100 per day
Hire 3 workers and pay $120 per day
Hire 2 workers and pay $90 per day
Hire 4 workers and pay $140 per day
Hire 4 workers and pay $110 per day
Explanation
This question requires analyzing a monopsonistic labor market for seasonal logging workers. A monopsony exists when there's a single buyer of labor facing an upward-sloping labor supply, meaning the firm must raise wages to attract more workers. The crucial distinction is that MFC (marginal factor cost) exceeds the wage because hiring an additional worker requires paying the higher wage to all workers. The profit-maximizing monopsonist hires where MRP = MFC, but this exact equality doesn't occur in the table—at 3 workers, MRP ($130) $ > $ MFC ($120), while at 4 workers, MRP ($110) $ < $ MFC ($140). Many students mistakenly think the firm hires at the exact intersection, but when there's no exact match, the firm hires up to where $ MRP \geq MFC $. The strategy is to find the last unit where MRP ≥ MFC, then read the wage from the supply curve—yielding 3 workers at $100 per day.
Based on the monopsonistic labor market shown in the table below (a single amusement park is the only employer of ride mechanics nearby), how many workers does the monopsonist hire and at what wage? Assume the park hires where $MRP = MFC$ and pays the wage on the labor supply curve at that employment level.
Table: Labor Supply to the Firm and Marginal Factor Cost
| Mechanics hired (L) | Wage ($/day) | MFC ($/day) |
|---|---|---|
| 1 | 80 | 80 |
| 2 | 85 | 90 |
| 3 | 90 | 100 |
| 4 | 95 | 110 |
| 5 | 100 | 120 |
| 6 | 105 | 130 |
The park’s marginal revenue product (MRP) schedule is: $MRP(1)=140$, $MRP(2)=130$, $MRP(3)=120$, $MRP(4)=110$, $MRP(5)=100$, $MRP(6)=90$.

Hire 3 mechanics and pay $90 per day.
Hire 5 mechanics and pay $120 per day.
Hire 4 mechanics and pay $95 per day.
Hire 5 mechanics and pay $100 per day.
Hire 4 mechanics and pay $110 per day.
Explanation
This question tests your understanding of monopsonistic labor markets. A monopsony is a market structure where a single buyer, here the amusement park, dominates the demand for labor and faces an upward-sloping labor supply curve, requiring higher wages to attract additional mechanics. The marginal factor cost (MFC) is greater than the wage because hiring one more mechanic means raising the wage for all mechanics employed. The monopsonist hires where the marginal revenue product (MRP) equals MFC, resulting in 4 mechanics at a wage of $95 per day read from the supply curve. A common misconception is treating the monopsonist as a wage taker in a competitive market, setting MRP equal to wage, which would incorrectly suggest hiring more. A transferable strategy is to find the quantity where MRP equals MFC, such as at 4 mechanics where both are $110. Then, read the wage directly from the supply curve at that employment level.