O Dilema Entre O Perdão e a Vingança, Veja (Brazil), September 1, 2008.

Calculating the Economics of an Eye for an Eye, New York Times, July 29, 2008.

Vengeance is Whose?, New York Times, Freakonomics Blog, July 18, 2008.

Does Death Penalty Save Lives? A New Debate, New York Times, December 18, 2007.

Çirkinler Yüzde 11 Daha Az Kazaniyor, Turkishtime (Turkey), April, 2006.

The Ugly Face of Crime, Washington Post, February 17, 2006.

Fula tjänar mindre och blir oftare kriminella, Sydsvenskan (Sweden), February 25, 2006.

Çirkinler Suça Yatkin, Milliyet (Turkey), February 25, 2006.

La Ricerca Americana. Furti, Rapine e Violenza, Corriera Della Sera (Italy), February 5, 2006.

Equality? Not on Death Row, BusinessWeek, June 30, 2003.