Not many Americans think of the legal profession as a monopoly, but it is. Abraham Lincoln, who practiced law for nearly twenty-five years, would likely not have been allowed to practice today. Without a law degree from an American Bar Association-sanctioned institution, a would-be lawyer is allowed to practice law in only a few states. ABA regulations also prevent even licensed lawyers who work for firms that are not owned and managed by lawyers from providing legal services. At the same time, a slate of government policies has increased the demand for lawyers' services. Basic economics...