The Italian Competition Authority has launched investigations into subsidiaries of luxury fashion companies Armani and Dior over the alleged exploitation of workers in their supply chains, it announced on Wednesday. According to the authority, the companies have, in some cases, sold products from workshops where workers were underpaid, subjected to long working hours, and employed in violation of safety regulations. On Tuesday, the companies’ business premises in Italy were searched, the authority said in a press release published on Wednesday. “In both cases, the companies may have issued unt…