?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Laffont&rft.aufirst=Jean-Jacques&rft.issue=4&rft.volume=63&rft.date=July+1995&rft.issn=0012-9682&rft.atitle=Econometrics+of+First-Price+Auctions&rft.title=Econometrica&rft.pages=953-980&rft.genre=article