Twenty-five years since the first Am Law 100 table, some fundamental patterns in the world’s largest legal market can be seen. Michael Goldhaber reports

By the numbers, Joseph Tate may be the luckiest lateral of the past 25 years. When Tate moved to Dechert from Schnader Harrison Segal & Lewis in 1991, he was moving from one top five Philadelphia firm to another. As it turned out, he was also moving from the firm that dropped the most ranks by size in the past quarter of a century to the one that gained the most ranks in profits per equity partner (PEP), among firms on the original Am Law 100 list (for fiscal year 1986).