As  e-commerce has  grown,  an increasing  number of consumers have made  purchases 
online.  Has  this changed  their  purchasing habits  from  local  retail stores?  Our  survey 
data from  2000 to 2008  show that  for  about  one third of  online  shoppers, their online 
purchases  have not reduced  their purchases of similar products and  services from local 
retail stores.  For them online shopping seems to be merely supplemental.  But about two 
thirds of online shoppers say that their online purchases reduce their purchases of similar 
products and services  from local retail stores.  Of these, most say  that online purchases 
have only reduced their local retail purchasing somewhat.