@article{economics2007-3,
 author = {Oliver E. Williamson},
 title = {Transaction Cost Economics: An Introduction},
 journal = {Economics: The Open-Access, Open-Assessment E-Journal},
 volume = {1},
 year = {2007},
 number = {2007-3},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2007-3}
}