Greenlees, John Shearer; McClelland, Robert - 2008
but also between the
categories of low-cost outlets. Notably, we find that the patterns of prices and sample
shares for … CPI exceed changes in a cost-of-living
index (COLI) unless (1) the CPI is based on a representative sample of outlets in …) would provide a better
approximation than the CPI index to changes in the cost of living. Conversely, if prices
in …