“…The other five papers in this issue address issues around the operation of insurance markets that involve “managed competition.” Three papers (Handel et al, 2023; Henriquez et al, 2023; Klein et al, 2023) analyze issues related to risk adjustment, which occur in systems where premiums are (partially) community rated and involve transfers from insurers who attract below‐average risk pools to those who attract above‐average risks. A fourth paper (P. H. Born, Tice Sirmans, et al, 2023), examines how health insurers adjusted their expenditures on quality improvement programs in reaction to regulations on minimum loss ratios under the ACA. In a fifth paper, Shepard and Forsgren (2023) investigate a constellation of conditions in the Massachusetts (the United States) health insurance marketplace that fall under the heading of “active purchasing” programs that seek to influence directly the plans available in the market to help control prices.…”