Browse Research and Commentary

Simply putting more police on the streets might be one of the most cost-effective ways to reduce crime.

October 3, 2012, Jens Ludwig, USA Today

We don't see very important neighborhood effects on those two outcomes that people have focused on. But the things that people had been focused on and worried about with neighborhoods aren't the full story. Helping poor families is about a lot more than just increasing their income.

September 20, 2012, Jens Ludwig, Wall Street Journal

More Prisoners Versus More Crime is the Wrong Question

December 2011, Philip J. Cook and Jens Ludwig

Increasing Residential Mobility to Boost Economic Mobility

October 13, 2010, Jens Ludwig and Steven Raphael

More COPS

March 2007, Jens Ludwig and John J. Donohue III

Success By Ten: Intervening Early, Often, and Effectively in the Education of Young Children

February 2007, Isabel V. Sawhill and Jens Ludwig

Evaluating Gun Policy

Effects on Crime and Violence

2003, Jens Ludwig and Philip I. Cook, eds.

Can Housing Vouchers Help Poor Children?

July 2000, Greg J. Duncan and Jens Ludwig