In the months since Chinese e-commerce behemoth Alibaba began trading shares in its Cayman Islands-based holding corporation on the New York Stock Exchange, entities ranging from the Chinese government to the owner of Gucci have accused the company of knowingly profiting from counterfeit branded goods. Alibaba has promised to improve its capacity to ferret out fakes, and now says that it will take down some brands’ items more quickly. The company’s Taobao marketplace is comparable to eBay: any Chinese resident can sign up and start selling.