@TechReport{economics.dp.2008-11,
 author = {Ormerod, Paul},
 title = {Random Matrix Theory and the Evolution of Business Cycle Synchronisation, 1886–2006},
 type = {Economics Discussion Paper},
 institution = {Kiel Institute for the World Economy},
 year = {2008},
 number = {2008-11},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2008-11}
}