Peter Ennis is an Associate Professor in the Department of Government and Executive Director of the
Roper Center for Public Opinion Research at Cornell University.
He is also the team leader of the Institute for Social Science theme project on the
Causes, Consequences, and Future of Mass Incarceration in the United States.
His research focuses on public opinion, representation, mass incarceration, and inequality.
Peter also teaches courses on quantitative research methods.
Peter's forthcoming book, Incarceration Nation, (Cambridge University Press)
explains why the public became more punitive in the 1960s, 70s, 80, and 90s, and
how this increasing punitiveness led to the rise of mass incarceration in the United States.