for more information ebusiness mit edu or 617 253 7054 please visit our website at http contact the center directly a research and education initiative sloan school of management consumer decision making an internet shopbot paper 137 michael d smith erik brynjolfsson july 2001 this version 23 acknowledgements we thank david genesove austan goolsbee il horn hann john dc little thomas malone allen montgomery nancy rose catherine wolfram richard zeckhauser robert zeithammer two reviewers seminar participants boston university carnegie mellon chicago indiana maryland michigan texas austin stanford wharton nber e commerce project brookings conference on measuring institution september 24 1999 workshop systems economics december 11 valuable comments christoph janz christopher muenchhoff evenbetter com generously collecting data necessary to conduct providing insight into market cheng frederic mahoue