NET Institute* www.NETinst.org Working Paper #04-03 October 2004 Risk Attitudes and Internet Search Engines: Theory and Experimental Evidence Aurora García-Gallego, Nikolaos Georgantzís, Pedro Pereira and José C. Pernías-Cerrillo Universitat Jaume I (Castellón, Spain), Universitat Jaume I, Autoridade da Concorrência (Portugal), and Universitat Jaume I * The Networks, Electronic Commerce, and Telecommunications (“NET”) Institute, http://www.NETinst.org , is a non-profit institution devoted to research on network industries, electronic commerce, telecommunications, the Internet, “virtual networks” comprised of computers that share the same technical standard or operating system, and on network issues in general.