Ironing, Sweeping, and Multidimensional Screening Jean-Charles Rochet; Philippe Choné Econometrica, Vol. 66, No. 4. (Jul., 1998), pp. 783-826. Stable URL: http://links.jstor.org/sici?sici=0012-9682%28199807%2966%3A4%3C783%3AISAMS%3E2.0.CO%3B2-3…
