id: 50290603 dt: j an: 50290603 au: Aperjis, Christina; Johari, Ramesh ti: Optimal windows for aggregating ratings in electronic marketplaces so: Management Science 56, No. 5, 864-880 (2010). py: 2010 pu: la: EN cc: ut: ci: li: doi:10.1287/mnsc.1090.1145