AP Microeconomics Unit 5: Factor Markets - 5.1 Introduction to Factor Markets

Sep 30, 2026

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AP Microeconomics Unit 5: Factor Markets explains how demand for resources is determined by the products they help produce, introducing derived demand and the four main factor payments: rent, wage, interest, and profit. It defines marginal revenue product (MRP) and marginal factor cost (MFC), contrasts perfectly competitive versus imperfectly competitive labor markets, and explains how changes in product prices, marginal product, and diminishing marginal returns affect hiring decisions. The unit also covers shifts in factor demand and supply, focusing on productivity, related resource prices, worker qualifications, regulation, and cultural expectations.

LanguageEnglish

CategoryExam

FormatPDF

Pages5

Reading Time13 min

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AP Microeconomics Unit 5: Factor Markets

5.1 Introduction to Factor Markets

5.2 Changes in Factor Demand and Factor Supply

5.3 Profit-Maximizing Behavior in Perfectly Competitive Factor Markets

5.4 Monopsonistic Markets

AP Microeconomics Unit 5: Factor Markets 5.1 Introduction to Factor Markets ● Derived demand: The demand for resources is determined (derived) by the products they help produce. (Ex. The demand for carpenters is derived from the demand of homes) ● The four factor payments are: ○ Rent ○ Wage ○ Interest ○ Profit ● Marginal revenue product (MRP): change in revenue when one more worker is employed; demand for labor ○ In a perfectly competitive market, it is found by multiplying MP x P (MR = P) ○ In an imperfectly competitive market, the MRP is found by multiplying MP x MR ○ If the price of a product increases, it is going to drive up the demand for labor because it increases the MRP. ○ When the marginal product of labor is equal to the average product of labor, MC is equal to minimum AVC. ○ It falls due to diminishing marginal product-each worker makes less than the previous worker due to diminishing marginal returns (lower fixed inputs and variable inputs) ○ Ifat least one input is fixed while the other inputs are variable, then the output will increase at a decreasing rate, since there are not enough tasks. ○ Firms hire when MRP = MFC (wage) ● Marginal factor cost (MFC): The additional cost of an additional resource/worker. ● Minimum Wage: price floor ● Perfect Competition: who has the following Image source: [https://www.economicsonline.co.uk/Business_economics/Competitive_labour_markets.html](https://www.economicsonline.co.uk/Business_economics/Competitive_labour_markets.html) ● Monopsony: the market structure ● Monopsonist: the individual firm graph: Image source: [https://www.economicshelp.org/labour-markets/monopsony/](https://www.economicshelp.org/labour-markets/monopsony/) 5.2 Changes in Factor Demand and Factor Supply ● What shifts the demand for labor? ○ Change in the demand for the product ○ Change in the productivity of the resource ○ Change in the price of related resources (substitutes and complements) shifts the supply for labor? ○ Number of qualified workers (immigration) ○ Government regulation/licensing ○ Cultural expectations 5.3 Profit-Maximizing Behavior in Perfectly Competitive Factor Markets ● The market (or industry) is a standard supply and demand curve ● The equilibrium wage in the market establishes the wages firms pay its workers ● The supply of workers derives from the amount of workers willing to work at various wages ● The demand curve (in a perfectly competitive labor market) derives from the demand for the products produced by the workers and each individual worker’s productivity when it comes to producing said products ● Firms are capable of hiring as many workers as possible at the market wage. This results in the labor supply curve for the firms as horizontal at the market wage. ● Remember, the market wage equals the cost of hiring workers so the supply curve is equivalent to the marginal resource cost (MRC) ● Any changes in the market wage will result in a shift of the firm’s MRC supply ● The demand curve = marginal revenue product (MRP) of the firms workers and has a downward slope MFC and MRP are measures used to determine the amount of output and the price per unit of a product that will maximize profits, almost like when supply equals demand. To maximize profits, firms will hire the number of workers where MFC=MRP *MRP is the change in total production that comes from an additional unit of labor ● As changes occur in a firm’s worker productivity, demand for a firm’s products, and prices of said products (all change MRP), the demand curve will shift proportionally ● A firm’s supply curve shifts with market wage ● The graph below depicts a decrease in the supply of workers, which causes: ○ ↑ wage ○ ↑ MRC/MFC ○ ↓ Qworkers Image source: [https://t.me/apresources](https://t.me/apresources) ● Increase in MRP for the firm’s laborers. ○ Because of better training for workers, implementation

FAQs

What is derived demand in factor markets?

Derived demand means the demand for a resource is determined by the demand for the products the resource helps produce. For example, demand for carpenters depends on demand for homes.

How are MRP and MFC used to determine hiring in competitive labor markets?

In profit-maximizing decisions, firms hire where MRP equals MFC. In a perfectly competitive market, the MRP of labor is tied to marginal product and product pricing (MR = P).

What factors shift the demand for labor?

Labor demand shifts with changes in the demand for the product, changes in resource productivity, the prices of related resources (substitutes and complements), the number of qualified workers, immigration, and government regulation/licensing as well as cultural expectations.

How does a monopsonistic market differ from a perfectly competitive factor market?

A monopsonistic market has one buyer (the employer) and many sellers (potential workers). The unit notes that for monopsonies, MFC is greater than supply, monopsonistic firms are wage makers, and workers are hired when MRP equals MRC.

Sep 30, 2026

Upload by jay