First paragraphs: The nonprofit Cooperative Development Services (CDS), a cooperative that offers business consulting services to co-ops, just released an incisive report showing how co-op groceries in the Minneapolis-St. Paul metro area grew over the past 40 years into a US$180-million commercial cluster (Stockinger & Gutknecht, 2014). This is strong growth for an upstart sector amidst established competitors in an often-hostile economic climate. While they still represent only two percent of the region's grocery trade, food co-ops have built a solid membership base. Their stores define the cutting edge of grocery retailing in the Twin Cities (where I live), and have had a profound influence on the ways groceries are sold here. The growth ...