Pricing decisions ultimately depend on costs and on how customers perceive value. Costs come in two main forms: fixed costs, which do not change with output (such as rent and salaries), and variable costs, which move with volume (such as materials and sales commissions). Marginal cost is the additional cost of producing one more unit, and marginal revenue is the additional revenue from selling one more unit. The classic profit-maximizing rule is to produce where marginal revenue equals marginal cost (\( MR = MC \)). Contribution margin, defined as the price per unit minus the variable cost per unit, measures how much each unit contributes to covering fixed costs and ultimately generating profit.
These pieces feed directly into pricing formulas. The break-even price is the level at which total revenue equals total cost, so profit is zero; in units, \( Break\text{-}even\ Units = \frac{Fixed\ Costs}{Price - Variable\ Cost\ per\ Unit} \). Markup is the amount added to cost, expressed as a percentage of cost, while margin is profit expressed as a percentage of the selling price. The two are often confused but interchange-able through \( Markup = \frac{Margin}{1 - Margin} \). Target-return or target-profit pricing sets price explicitly to achieve a specified return on investment at an expected sales volume, anchoring the price to a financial objective.
On the demand side, perceived value is the customer's assessment of a product's worth relative to alternatives, which the value triangle summarizes: the price the customer pays must exceed the cost to serve and be less than the perceived value created. A reference price is the figure customers carry in their minds from past purchases, competitors, or context, against which new prices are compared. Price signaling uses price to communicate quality or exclusivity, reinforced by the price-quality heuristic, where higher prices are assumed to mean higher quality. Willingness to pay (WTP) is the maximum price a customer would pay, and several research techniques estimate it: Van Westendorp's Price Sensitivity Meter asks four questions to map "too cheap," "cheap," "expensive," and "too expensive" ranges; the Gabor-Granger method asks consumers how likely they are to buy at different price points to estimate a demand curve; and conjoint analysis determines how customers value individual product features so prices can be built feature by feature.
Pricing does not happen in a vacuum. A price war breaks out when competitors repeatedly undercut one another, often triggered by a new low-cost entrant, excess industry capacity, or an aggressive price cut, compressing industry margins. Price leadership describes a market structure in which one dominant firm sets the price and rivals follow. Predatory pricing is the practice of setting prices below cost with the intent of driving competitors out of the market and raising prices later, and it is illegal under antitrust law in many jurisdictions because it can harm competition and consumers over the long term. Limit pricing is a milder defensive tactic, setting a price low enough to deter new entrants. Experience curve pricing relies on the experience curve effect, the observation that unit costs decline by a fixed percentage each time cumulative output doubles, so prices can be set based on expected future costs as production scales. Finally, bundling and tying are often confused: bundling sells multiple products together as a package, while tying requires a customer to buy one product as a condition of buying another. Getting these distinctions right is essential to choosing pricing tactics that reinforce, rather than undermine, the broader pricing strategy.