%0 Journal Article %T A Pedagogical Note on Multitier Pricing Scheme %A Tai-Liang Chen %A Winston W. Chang %J The American Economist %@ 2328-1235 %D 2018 %R 10.1177/0569434517745311 %X This note derives a new formula for determining a monopolist¡¯s optimal multitier pricing scheme for any given number of tiers. It further characterizes Gabor¡¯s (Review of Economic Studies) two-tier pari passu marginal revenue function to the n -tier case. By introducing the individual tier¡¯s marginal revenue and the pari passu marginal revenue in a linear demand case, this note provides a perceptive graphical representation of the optimal pricing scheme, revealing that all tiers¡¯ outputs are equal, the last tier¡¯s price is always higher than the marginal cost, and an increase in the number of tiers increases social welfare. In a class of nonlinear demand functions, it shows that starting from the first tier, the tiers¡¯ outputs are monotonically increasing (decreasing) if the demand function is strictly convex (concave). It also shows that the equal-tier-output property preserves in the linear demand case with the total output fixed as a constraint. JEL Classification: D01, D21, D42, L12, L2 %K monopoly %K second-degree price discrimination %K multitier pricing %K public utility pricing %K social welfare %U https://journals.sagepub.com/doi/full/10.1177/0569434517745311