@TechReport{economics.dp.2007-41,
 author = {Driver, Ciaran and Hall, Stephen G.},
 title = {Production Constraints and the NAIRU},
 type = {Economics Discussion Paper},
 institution = {Kiel Institute for the World Economy},
 year = {2007},
 number = {2007-41},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2007-41}
}