A. Mitchell Polinsky & Daniel L. Rubinfeld, The Deadweight Loss of Coupon Remedies for Price Overcharges, 56 Journal of Industrial Economics 402 (2008) (available earlier as Remedies for Price Overcharges: The Deadweight Loss of Coupons and Discounts, John M. Olin Program in Law and Economics Working Paper No. 271 (2003)).
