@unpublished{publication-5746, author={Lalive, Rafael and van Ours, Jan C and Zweim{\"u}ller, Josef}, institution={University of Zurich}, issn={1424-0459}, number={No. 110}, series={Working paper series / Institute for Empirical Research in Economics}, title={The Effect of Benefit Sanctions on the Duration of Unemployment}, year=2002, }