Short-coming of GMROII
A short-coming of GMROII driven analysis is that items with high sell-offs (i.e. the final stock level falls towards zero) appear better than items with constant inventory supplies. Fashionable items that totally sold off will appear better than basic items such as black socks that are replenished by reorders. This is particularly evident when analyzing shorter time periods or item level information rather than higher level (department) information.
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