Per Johansson is professor of Statistics at the Department of Statistics, a researcher at the Institute for Labour Market and Education Policy Evalution, IFAU and a scientific advisor at the Inspectorat of Social Insurence, ISF. Per holds a Philosophy Licentiate (1992) from the Stockholm School of Economics and a Ph. D. (1993) from Umeå University. In 2002 - 20015 he was a professor in econometrices at the department of economics uppsala university.
His research deals with the analysis of micro data in general (both methodological and applied). The applied work has mainly been in labor economics and health (e.g. effects of income security systems on labor market behavior, program evaluation, and economics of education) but he has also done research in transport economics. Publications include papers in Journal of Econometrics, Journal of European Economic Association, Journal of Business and Economic and Statistics, Journal of Public Economics, Journal Labor Economics,Journal of Applied Economerics, Journal of Royal of Statistcs Society, Journal of Health Economics, Journal of Human Resources and Transportation Research.

He joined IZA as a Research Fellow in January 2009.