@article{economics2008-19,
 author = {Zhenlin Yang and Lydia Gan and Fang-Fang Tang},
 title = {A Study of Pricing Evolution in the Online Toy Market},
 journal = {Economics: The Open-Access, Open-Assessment E-Journal},
 volume = {2},
 year = {2008},
 number = {2008-19},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2008-19}
}