Chinese e-commerce giant Alibaba Group Holding is doubling down and escalating its community group buying operations through a new brand called Taocaicai, as competition in this growing retail market segment intensifies amid Beijing’s tightened regulation. Consumers can access Taocaicai, where they can find more than 1 million products from around the world, on the homepage of shopping platform Taobao Marketplace and the Taobao Deals’ app. “Taocaicai is for a better life, providing people with more affordable and good products, as well as more convenient and warm service,” said Trudy Dai Shan, head of Taocaicai and one of Alibaba’s select partners…