During the period when formalism was popular, Beale developed American conflicts law with the form of Restatement of the Law of Conflict of Laws (First), based on his theory of vested rights.

• 在形式主义法学影响下，比尔以《美国冲突法重述（第一次）》为主要载体，以既得权理论为根基，进一步发展了美国的冲突法。