@article{economics2008-11,
 author = {Paul Ormerod},
 title = {Random Matrix Theory and the Evolution of Business Cycle Synchronisation, 1886–2006},
 journal = {Economics: The Open-Access, Open-Assessment E-Journal},
 volume = {2},
 year = {2008},
 number = {2008-11},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2008-11}
}