Costco's business model inverts retail: membership fees are the profit, merchandise runs at near-zero margin, and Kirkland private label competes with national brands by transferring savings. FTN's Costco and Walmart playbooks compare models; this list covers what exists in print and cases.
Company Narratives and Cases
The Costco Story (business press accounts)
Various · Essay
Collected journalism and short accounts—no single definitive book yet; piece together from profiles and case studies.
Jim Sinegal interviews and speeches
Jim Sinegal · Interview
Founder philosophy on wages, simplicity, and membership trust—primary source for culture.
Membership Economics and Retail Strategy
HBS / retail case studies on Costco
HBS Publishing · Essay
Structured analysis of membership economics, SKU count discipline, and labour costs.
Costco annual report / investor materials
Costco · Primary Document
Membership renewal rates, private-label penetration, and warehouse economics in filings.