As the Covid-19 pandemic took hold in Brazil, Vera Barbosa feared for the survival of her business. The owner of a confectionery store in Campinas — the second-most populous city in the state of São Paulo — she was running out of ideas to keep her doors open and hold on to her eight employees. Until help came from a group of young students. Ms. Barbosa, 52, changed her entire strategy after receiving consultancy from marketing students of Transforme SP, a project seeking to assist small businesses during crises caused by the pandemic.
By way of donations, junior...