The case for Costco as the anti-Amazon runs into a study saying its 'greener' model is the dirtiest option (phenomenalworld.org)
The argument: Costco is Amazon's mirror image and the better one — SG&A near 10% of sales versus Amazon's ~40%, over 90% membership renewal, higher wages, single-digit turnover. Constraint beats infinite assortment, and the customer's own last-mile trip is the efficiency.
The thread inverts the green claim: in-store pickup by a gas car was the dirtiest option in an emissions study — and Costco already outsources delivery to Instacart, quietly running the very last mile the essay says it avoids.
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