Derived demand is the demand for a factor of production (labor, capital, land) that comes from the demand for the final good or service that factor helps produce. In AP Micro, it explains why a shift in a product market shifts the labor demand curve in the related factor market.
Derived demand means firms don't want workers for their own sake. They want workers because customers want the stuff workers make. Nobody hires a barista because baristas are fun to have around; coffee shops hire baristas because people buy coffee. If demand for coffee rises, demand for baristas rises with it. That's the whole idea.
In AP Micro terms (EK PRD-4.A.1), a firm's decision to hire depends on the productivity of the factor, the price of the output, and the cost of the factor. The first two of those come straight from the product market, which is why factor demand is "derived." This is the logic behind marginal revenue product (MRP = marginal product × marginal revenue, or × price in perfect competition). When the output price rises because consumers demand more of the good, MRP rises, and the labor demand curve shifts right. Product markets and factor markets are two graphs telling one story.
Derived demand lives in Topic 5.1 (Introduction to Factor Markets) and supports learning objectives AP Micro 5.1.A and 5.1.B, which ask you to define factor market concepts and explain the relationship between factors of production, firms, and factor prices. It's also the conceptual setup for 5.1.C, where you calculate marginal revenue product. The enduring understanding here (PRD-4) says factor prices convey information and incentives, and derived demand is the mechanism that carries that information from consumers to firms to workers. Practically, almost every Unit 5 question about shifting the labor demand curve is secretly a derived demand question. If you can trace a change in a product market through to wages and employment in a factor market, you've mastered the skill Unit 5 is built on.
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Marginal Revenue Product (Unit 5)
MRP is derived demand turned into a number. It measures the extra revenue one more worker generates, which depends on the output's price. The MRP curve IS the firm's labor demand curve, so when product demand raises output price, MRP and labor demand shift together.
Factor Markets (Unit 5)
Derived demand is what flips the circular flow. In product markets, households demand and firms supply. In factor markets, firms demand and households supply, and the firms' demand exists only because of what's happening back in the product market.
Demand and Market Equilibrium (Unit 2)
Everything you learned about demand shifters in Unit 2 feeds Unit 5. A rightward shift in product demand raises the equilibrium price of the good, which raises MRP, which shifts labor demand right and pushes up the wage. One shift, two graphs.
Complementary Goods (Unit 2)
Factors can be complements to each other, too. If capital and labor work together (like trucks and drivers), cheaper capital can raise the productivity of labor and increase derived demand for workers. Same complement logic as in product markets, applied to inputs.
Derived demand shows up most often in multiple-choice questions that test whether you can connect a product market change to a factor market change. A classic stem asks how an increase in demand for a good in a perfectly competitive product market affects the demand for labor in that industry (answer: labor demand shifts right because output price and MRP rise). Other MCQs ask directly what determines resource demand in factor markets, and the answer is always the demand for the final product, not the wage. No released FRQ has used the phrase verbatim, but Unit 5 FRQs routinely make you apply it: you'll draw side-by-side product market and labor market graphs and show how a shift in one moves the other. Remember the wage rate itself never shifts the labor demand curve; it moves you along it (EK PRD-4.A.2).
Direct demand is consumers wanting a good for the satisfaction it gives them, like wanting pizza because pizza is good. Derived demand is a firm wanting an input only because that input helps produce something consumers want, like a pizzeria wanting pizza cooks. The tell on the exam is who's doing the demanding. Households demand products directly; firms demand factors derivatively. If a question is about hiring labor, renting land, or buying capital, you're in derived demand territory.
Derived demand means the demand for a factor of production comes from the demand for the final good or service it helps produce.
An increase in demand for a product raises its price, which raises workers' marginal revenue product and shifts labor demand to the right.
The firm's labor demand curve is its MRP curve, so anything that changes output price or worker productivity shifts labor demand.
A change in the wage rate causes movement along the labor demand curve, not a shift, per EK PRD-4.A.2.
Derived demand connects the product market and factor market, so on graphs you should be able to show one shift triggering the other.
Firms demand factors; households demand products. If a firm is the buyer, the demand is derived.
Derived demand is the demand for a factor of production (like labor) that exists because of demand for the final product that factor makes. For example, demand for construction workers is derived from demand for new houses. It's the foundation of Topic 5.1 in Unit 5 (Factor Markets).
No. A change in the wage rate moves you along the labor demand curve (quantity of labor demanded falls as the wage rises, per EK PRD-4.A.2). The curve itself shifts only when output price, product demand, or worker productivity changes.
Regular (direct) demand is households wanting goods for their own satisfaction. Derived demand is firms wanting inputs only because those inputs produce goods consumers want. The buyer is different (firms instead of households) and the motive is production, not consumption.
When product demand rises, the good's price rises. Since marginal revenue product equals marginal product times the output price, each worker now generates more revenue, so firms want to hire more at every wage. That shifts the labor demand curve right.
Not quite, but they're tightly linked. Derived demand is the concept (factor demand depends on product demand); MRP is the calculation that quantifies it. The MRP curve is literally the firm's labor demand curve, which is why you need both for AP Micro 5.1.C.