This discussion paper has resulted in ch. 4 of <A href="http://books.google.nl/books?hl=nl&lr=&id=edksC0nRPZYC&oi=fnd&pg=PR7&dq=allesintitel:+%22Labor+Market+Institutions+and+Public+Regulation%22&ots=-umxBkjdnT&sig=oeFDTjhnSeo-w-4nuTjTJpuaUr8#v=onepage&q=&f=false">'Labor Market Institutions and Public Regulation'</A>, pp. 123-61, (Jonas Agell, Michael Keen, Alfons Weichenrieder (eds.)), 2004, MIT Press, 228 p.

Impact evaluations of development programmes usually focus on a comparison of participants with a control group. However, if the programme generates externalities for non-participants such an approach will capture only part of the programme’s impact. Based on a unique large-scale quantitative...

In the Netherlands, students who want to become a medical specialist have toenrol in a training program which is in limited supply. During the search for aposition as trainee (or "junior medical specialist"), they may accept atemporary job as a medical assistant. We use a micro data set to...

Impact evaluations of development programmes usually focus on a comparison of participants with a control group. However, if the programme generates externalities for non-participants such an approach will capture only part of the programme’s impact. Based on a unique large-scale quantitative...

In the Netherlands, students who want to become a medical specialist have to enrol in a training program which is in limited supply. During the search for a position as trainee (or "junior medical specialist"), they may accept a temporary job as a medical assistant. We use a micro data set to...

This discussion paper resulted in an article in the <I>Journal of Public Economics</I> (2013). Volume 105, pages 72-85.<P> In a door-to-door fundraising field experiment, we study the impact of fundraising mechanisms on charitable giving. We approached about 4500 households, each participating in either...</p></i>