@TechReport{economics.dp.2009-12,
 author = {Ni, Shawn and Ratti, Ronald A.},
 title = {Heterogeneous Parameter Uncertainty and the Timing of Investment during Crisis},
 type = {Economics Discussion Paper},
 institution = {Kiel Institute for the World Economy},
 year = {2009},
 number = {2009-12},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2009-12}
}