@TechReport{economics.dp.2012-53,
 author = {Hildenbrand, Andreas},
 title = {Is a "Firm" a Firm? A Stackelberg Experiment},
 type = {Economics Discussion Paper},
 institution = {Kiel Institute for the World Economy},
 year = {2012},
 number = {2012-53},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2012-53}
}