?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Vulkan%2C+Nir&rft.aufirst=Nir&rft.aulast=Vulkan&rft.inst=UCL+(University+College+London)&rft.degree=Doctoral&rft.date=1997&rft.tpages=108&rft.title=Uncertainty%2C+information+acquisition+and+economic+equilibria