# Richard Posner **Richard Allen Posner** (b. 1939) is the American legal scholar and retired federal judge who, more than any other individual, built the **law and economics movement** — the application of economic cost-benefit analysis to legal rules, judicial reasoning, and the entire common-law tradition. As a professor at the University of Chicago Law School and then as a judge on the U.S. Court of Appeals for the Seventh Circuit (appointed by [[Ronald Reagan]] in 1981), Posner spent five decades arguing that the purpose of law is to maximize economic efficiency, and that legal rules should be evaluated by whether they produce optimal resource allocation rather than by moral or distributional criteria. Posner is the **most cited legal scholar of the 20th century** and, as of 2021, the most cited American legal scholar of all time. His 1973 book *Economic Analysis of Law* is the foundational text of the law and economics field. For the Right Wing KB, Posner matters because the law and economics movement provided the intellectual framework for the [[Chicago School]]'s colonization of American jurisprudence — the conversion of legal reasoning from a discipline concerned with justice, rights, and equity into one concerned with efficiency, cost-benefit ratios, and market outcomes. ## Background Richard Posner was born on **January 11, 1939** in **New York City**. He graduated summa cum laude from Yale College in 1959 and first in his class from Harvard Law School in 1962, where he served as president of the *Harvard Law Review*. After law school, Posner clerked for Justice William J. Brennan Jr. on the U.S. Supreme Court — an irony, given that Brennan was among the most liberal justices in modern history and Posner would become a pillar of the conservative legal establishment. From 1963 to 1965, Posner served as assistant to Commissioner Philip Elman at the Federal Trade Commission. He then worked as an assistant to Solicitor General Thurgood Marshall and served as general counsel to President Lyndon Johnson's Task Force on Communications Policy. These early government positions gave Posner an insider's view of regulatory bureaucracy that shaped his later skepticism of government intervention. ## The Law and Economics Movement In 1968, Posner began teaching at Stanford Law School, then moved to the University of Chicago Law School in 1969. At Chicago, immersed in the economics department that housed [[Milton Friedman]], [[George Stigler]], [[Gary Becker]], and [[Robert Lucas]], Posner synthesized economic theory with legal analysis into a comprehensive framework. His 1973 book *Economic Analysis of Law* argued that the common law — tort, contract, property, criminal law — could be understood as a system that (imperfectly) maximizes economic efficiency, and that judges should explicitly adopt efficiency as their decisional criterion. The central claim: a legal rule is good if it produces outcomes that maximize total social wealth (the sum of all willingness-to-pay). Tort law should set liability rules that minimize the total cost of accidents plus accident prevention. Contract law should enforce agreements that move resources to their highest-valued uses. Criminal law should set penalties that deter inefficient behavior. Property law should define rights that facilitate Coasean bargaining. The political valence is clear: if efficiency is the criterion, then redistributive regulation is suspect (it reduces total wealth), progressive taxation is questionable (it discourages wealth-maximizing activity), and [[Antitrust]] enforcement should focus narrowly on consumer welfare rather than market structure or political power. This framework aligned perfectly with the [[Chicago School]]'s broader project and was absorbed by the [[Federalist Society]], [[Heritage Foundation]], and the Reagan-era judicial appointment pipeline. ## The Bork Connection and Antitrust Posner's law and economics project overlapped substantially with [[Robert Bork]]'s influential 1978 book *The Antitrust Paradox*, which argued that [[Antitrust]] law should focus exclusively on consumer welfare (measured by prices) rather than on protecting competition, preventing market concentration, or dispersing economic power. Together, Posner and Bork constituted the intellectual foundation for the Reagan-era transformation of [[Antitrust]] enforcement — from an aggressive tool for preventing corporate concentration to a narrow, economics-driven framework that made it nearly impossible to challenge mergers and monopolies. The consequences are visible in the current economy: the consolidation of industries from telecommunications to agriculture, the rise of tech monopolies, and the political power of concentrated corporate wealth all trace, in part, to the Posner-Bork revolution in antitrust thinking. ## Judicial Career On October 27, 1981, [[Ronald Reagan]] nominated Posner to the U.S. Court of Appeals for the Seventh Circuit. He served as chief judge from 1993 to 2000 and as a judge until his retirement on September 2, 2017. During his 36 years on the bench, Posner authored more than 3,300 judicial opinions — an output rivaled by no other federal appellate judge in modern history. He was simultaneously the most productive federal judge and the most productive legal scholar in the country, continuing to teach and publish throughout his judicial career. Posner's judicial opinions applied the law and economics framework directly: analyzing costs and benefits, evaluating incentive structures, and treating legal rules as instruments for maximizing efficiency. He became the most influential appellate judge not on the Supreme Court. ## The Late-Career Heterodoxy Unlike many figures in the Right Wing KB, Posner's intellectual trajectory moved **leftward** over time — a pattern that mirrors [[Bruce Bartlett]]'s trajectory from supply-side true believer to conservative apostate. After the [[2008 Financial Crisis]], Posner published *A Failure of Capitalism* (2009), arguing that the crisis was caused by rational actors responding to deregulatory incentives — a partial concession that markets are not self-correcting and that the law and economics framework's faith in market efficiency had contributed to the disaster. In later years, Posner became sharply critical of the Supreme Court under Chief Justice [[John Roberts]], arguing that the conservative justices engaged in the same kind of ideological activism they accused liberals of practicing. He criticized the *Citizens United* decision, expressed skepticism about originalism, and defended judicial pragmatism over doctrinal purity. By the time he retired in 2017, Posner was something of an apostate from the conservative legal movement he had helped create — still an efficiency-focused pragmatist, but no longer a reliable ally of the [[Federalist Society]] project. In 2018, Posner was diagnosed with Alzheimer's disease. ## KB Significance **1. The legal scaffolding.** Posner's law and economics movement provided the intellectual framework for the [[Chicago School]]'s penetration of American law. By converting legal reasoning from a justice-centered discipline to an efficiency-centered one, Posner enabled the [[Federalist Society]]'s project of reshaping the judiciary around market-friendly principles. The Reagan-era judicial appointment pipeline — which produced [[Antonin Scalia]], [[Robert Bork]]'s failed nomination, and the Federalist Society network — drew heavily on the Posner-Bork law and economics framework. **2. The antitrust revolution.** Posner and [[Robert Bork]]'s transformation of [[Antitrust]] law from a tool for preventing corporate concentration to a narrow consumer-welfare test is one of the most consequential policy changes of the late 20th century. The current era of corporate monopoly — in tech, media, agriculture, finance — is partly the product of the intellectual revolution Posner helped create. **3. The apostasy pattern.** Posner's late-career heterodoxy — criticizing the [[2008 Financial Crisis]] deregulation, the Roberts Court, and originalism — mirrors the trajectory of [[Bruce Bartlett]], David Frum, and other conservatives who built the intellectual infrastructure of the right and then watched it produce outcomes they didn't intend. The apostasy is instructive: even the architects recognize that the machine they built has malfunctioned. **4. The Chicago-to-courtroom pipeline.** Posner embodies the translation of [[Chicago School]] academic economics into binding legal precedent. When a federal judge evaluates a merger using cost-benefit analysis rather than structural analysis, or dismisses a regulatory challenge on efficiency grounds, they are applying the framework Posner constructed. The law and economics movement converted Chicago School economics from academic theory into the operating system of American federal courts. ## See Also - [[Robert Bork]] — co-architect of the antitrust revolution - [[Chicago School]] — the intellectual tradition - [[Federalist Society]] — the legal organization that institutionalized law and economics - [[Antonin Scalia]] — Reagan judicial appointee; originalism as the alternative conservative legal theory - [[Ronald Reagan]] — the president who appointed Posner and launched the conservative judicial revolution - [[Antitrust]] — the legal field Posner and Bork transformed - [[Milton Friedman]] — the Chicago economist whose work Posner translated into legal reasoning - [[George Stigler]] — regulatory capture theory; the economics behind Posner's skepticism of regulation - [[Gary Becker]] — extending economic analysis to non-market domains, parallel to Posner's legal project - [[2008 Financial Crisis]] — the event that prompted Posner's partial apostasy - [[Heritage Foundation]] — institutional beneficiary of law and economics