“…Regulatory impositions increase the cost and time it takes to bring new drugs to market, and spawn a literature focusing on shareholder wealth effects around FDA announcements. Early studies evaluate FDA approvals, rejections, recalls, disciplinary decisions, spill-over effects and the extent of information leakage (Bosch & Lee, 1994;Hingorani et al, 1994;Dranone & Olsen, 1994;Torabzadeh et al, 1998;Sharma & Lacey, 2004). Collectively, this literature reports significant increases in shareholder wealth for drug approvals, decreases for rejections and recalls, spill-over effects on competitors, and Our paper is motivated by a number of factors.…”