Unit 5 - Factor Markets
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5.1 - Introduction to Factor Markets
Key Terms & Definitions
Factors of Production
The resources used to produce goods and services: Land, Labor, Capital, and Entrepreneurship.
- •Labor: Human effort used in production (wages).
- •Land: Natural resources (rent).
- •Capital: Tools and machinery (interest).
- •Entrepreneurship: Risk-taking and innovation (profit).
Factor Market
The market where the factors of production (resources) are bought and sold.
- •Households supply resources (Supply curve).
- •Firms demand resources (Demand curve).
Derived Demand
The concept that the demand for a resource is determined by the demand for the good or service that resource produces.
- •If the demand for pizza goes up, the demand for pizza chefs goes up.
- •Resource demand is NOT independent.
Labor Supply
The relationship between the wage rate and the quantity of labor that households are willing and able to provide.
- •Households are responsible for labor supply.
- •There is a direct relationship between the wage rate and the quantity of labor supplied.
- •A change in the wage rate leads to a change in the quantity of labor supplied (Qs).
Labor Demand
The relationship between the wage rate and the quantity of labor that firms are willing and able to hire.
- •Firms are responsible for labor demand.
- •There is an inverse relationship between the wage rate and the quantity of labor demanded.
- •A change in the wage rate leads to a change in the quantity of labor demanded (Qd).
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5.2 - Changes in Factor Demand and Factor Supply
Key Terms & Definitions
Marginal Revenue Product (MRP)
The additional revenue generated by hiring one more unit of a resource (e.g., one more worker).
- •Formula: Marginal Product (MP) x Marginal Revenue (MR).
- •Represents the Factor Demand Curve for the firm.
Marginal Factor Cost (MFC)
The additional cost incurred by hiring one more unit of a resource.
- •Also known as Marginal Resource Cost (MRC).
- •Formula: Change in Total Resource Cost / Change in Quantity of Resource.
- •In a perfectly competitive labor market, MFC equals the Wage.
Shifters of Labor Demand
Factors that shift the MRP curve (Demand for Labor).
- •Change in Price of the Product (P↑ → MRP↑).
- •Change in Productivity (MP↑ → MRP↑).
- •Change in Price of Related Resources (Substitutes/Complements).
Shifters of Labor Supply
Factors that shift the supply of labor curve.
- •Education and Training.
- •Availability of alternative opportunities.
- •Migration and Population changes.
- •Changes in leisure preferences.
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5.3 - Profit-Maximizing Behavior in Perfectly Competitive Factor Markets
Key Terms & Definitions
Marginal Revenue Product (MRP)
The additional revenue generated by hiring one more unit of a resource (e.g., one more worker).
- •Formula: Marginal Product (MP) x Marginal Revenue (MR).
- •Represents the Factor Demand Curve for the firm.
Marginal Factor Cost (MFC)
The additional cost incurred by hiring one more unit of a resource.
- •Also known as Marginal Resource Cost (MRC).
- •Formula: Change in Total Resource Cost / Change in Quantity of Resource.
- •In a perfectly competitive labor market, MFC equals the Wage.
Profit-Maximizing Hiring Rule
A firm should continue to hire resources as long as the additional revenue brought in by the resource is greater than or equal to the additional cost.
- •Formula: Hire where MRP = MFC (or MRP = MRC).
- •Works just like MR = MC for output.
Perfectly Competitive Labor Market
A labor market with many small firms hiring, many workers with identical skills, and constant wages.
- •Firms are "Wage Takers".
- •The firm's supply of labor is perfectly elastic (horizontal) at the market wage.
Least-Cost Rule (Cost Minimization)
The optimal combination of two different resources (like Labor and Capital) to produce a specific output at the lowest cost.
- •Formula: (MP of Labor / Price of Labor) = (MP of Capital / Price of Capital).
- •Basically, get the same "bang for your buck" from the last dollar spent on each resource.
5.4 - Monopsonistic Markets
Key Terms & Definitions
Monopsony
A market structure where there is only a single buyer of a resource (e.g., a "company town" where one factory hires everyone).
- •The firm is a "Wage Maker".
- •To hire more workers, the firm must raise the wage for ALL workers, not just the new one.
Monopsony Graphing
In a monopsony, the Marginal Factor Cost (MFC) curve lies above the Supply curve.
- •The MFC curve lies above the Supply curve because in a monopsony, to hire one more worker, the firm must raise the wage for ALL workers, not just the new one.
- •Example: If a firm currently pays $10/hour to 10 workers and wants to hire an 11th worker, it must raise the wage to $11/hour for all 11 workers. The MFC of the 11th worker is $11 (the new wage) + $10 (the additional $1/hour for each of the 10 existing workers) = $21, which is above the $11 supply price.
- •Quantity hired is determined where MRP = MFC.
- •Wage paid is determined by the Supply curve at that quantity (Wage < MRP).
- •Result: Monopsonies hire fewer workers and pay lower wages than competitive markets.
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