6/6     Is it me, or do workers in Costco stores work faster yet seem to be in
        better mood despite the pressure, than those in other stores like
        Walmart and Safeway?
        \_ Costco pays better and has profit sharing.
        \_ it is true, but I don't know why. I'm guessing more pay/employee
           means they have a better pool of candidates to pick from, kind of
           like how Ivy League schools can pick smarter students than
           Ivy rejects (e.g. your local community college).