Price Taker vs Price Maker
Price Taker and Price Maker are two Market Structures concepts in AP Economics that students often mix up. A price taker is a firm that must accept the market price as given and cannot influence it through its own output decisions. A price maker is a firm that has the ability to set its own price rather than accept the market price as given. Here is how they compare side by side.
This occurs in perfectly competitive markets where each firm's output is too small relative to the market to affect price. The firm's demand curve is horizontal at the market price.
Unlike firms in perfect competition, price makers face downward-sloping demand curves and can influence price by changing output levels. Monopolists, oligopolists, and monopolistic competitors are all price makers.
Price Taker vs Price Maker: It Comes Down to the Firm's Demand Curve
| Price taker | Price maker | |
|---|---|---|
| Firm's own demand curve | Horizontal, perfectly elastic at the market price | Downward sloping |
| Marginal revenue | Equal to price, so D = MR = AR | Below price at every positive quantity |
| What the firm chooses | Its quantity only | One point on its demand curve, price or quantity but not both |
| Profit-max shortcut | Set P equal to MC | Set MR equal to MC, then read price off demand |
| Where you find it | Perfect competition, and firms buying in competitive factor markets | Monopoly, oligopoly, monopolistic competition |
| Markup over marginal cost | Zero, price equals marginal cost | Positive, larger the less elastic its own demand |
What being a price taker actually means
A price taker accepts the market price as given because nothing it does can move that price. Two conditions produce this: the firm's output is a negligible share of the market, and its product is identical to everyone else's, so buyers have no reason to pay it even a cent more. Its own demand curve is therefore horizontal at the market price, perfectly elastic, and marginal revenue equals price because selling one more unit adds exactly the price to revenue with no need to cut price on earlier units. That is why the competitive rule is written P = MC rather than MR = MC, even though the two are the same statement here. Price taking does not mean the price never changes: market supply and demand move it all the time, and the firm simply responds to the new price rather than setting it.
What price-making power buys you
A price maker faces a downward-sloping demand curve for its own output, which is another way of saying it has customers who will not all leave the instant it raises price. The catch is that to sell one more unit it must lower price on every unit it sells, so marginal revenue falls below price, and the firm maximizes profit where MR equals MC and then charges the price its demand curve supports at that quantity. Pricing power is a matter of degree rather than a yes or no: for a profit-maximizing firm charging a single price, the markup (P - MC) divided by P equals the reciprocal of the absolute price elasticity of its own demand, so a monopolistic competitor surrounded by close substitutes has a thin markup while a monopolist with none can have a fat one. A perfectly elastic demand curve sends that reciprocal to zero, which is exactly the price-taker case.
The mistake: confusing the firm's demand curve with the market's
The most common error on this topic is thinking that demand curves are horizontal in perfect competition. Market demand slopes downward in every market structure, including perfect competition, because buyers as a group still buy more at lower prices. What is horizontal is the demand curve facing one tiny firm within that market, and exam diagrams deliberately show the market panel and the firm panel side by side with the firm's horizontal line drawn at the market equilibrium price. Read the axis labels before you shift anything, because a change in market supply moves the equilibrium price, which slides the individual firm's horizontal demand line up or down. The same taker and maker distinction shows up on the buying side of factor markets too, where a competitive employer is a wage taker facing a horizontal labor supply curve, while a monopsonist is a wage maker facing an upward-sloping one.
Frequently asked questions
What is the difference between a price taker and a price maker?
A price taker must accept the market price and faces a horizontal, perfectly elastic demand curve for its own output, while a price maker faces a downward-sloping demand curve and can charge a higher price only by selling less. Price takers produce where price equals marginal cost, whereas price makers produce where marginal revenue equals marginal cost and then read the price off their own demand curve.
Is the demand curve in perfect competition horizontal or downward sloping?
In perfect competition the market demand curve slopes downward as it always does, while the demand curve facing each individual firm is horizontal at the market price. Exam diagrams show the market panel and the firm panel side by side, and mixing the two up is the most frequent mistake on this topic.
Are monopolistically competitive firms price takers or price makers?
Monopolistically competitive firms are price makers, because product differentiation gives each firm its own downward-sloping demand curve and a little room to raise price without losing every customer. Their pricing power is limited, though, since close substitutes keep that demand curve very elastic and the markup over marginal cost small.
Can a price maker choose both its price and its quantity?
No, a price maker cannot choose price and quantity independently, because it must pick a single point on its own demand curve: setting a price determines how much it can sell, and setting a quantity determines the price it can charge. A firm that price discriminates charges several different prices at once, but every one of them still has to lie on the demand curve.
Live Perfect Competition graph. Drag the curves, or open the full version.
Live Monopoly graph. Drag the curves, or open the full version.
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