Celebrities including Emma Watson, Kelly Slater, and Fernanda Paes Leme used the hashtag on Twitter to support the issue. The movement also utilized YouTube to spread awareness. To promote the hashtag in 2015, Fashion Revolution released a video titled “The 2 Euro T-Shirt - A Social Experiment”. The video showed a vending machine selling t-shirts for 2 Euros. When people went to purchase the shirt, a video played describing the working conditions in which the shirt was made. By the end, people chose to donate to the cause of increasing supply chain transparency instead of buying the t-shirt. The video has over 7.9 million views. Their 2018 campaign film uploaded on April 22nd, 2018 was awarded the Best Green Fashion Film award at the Fashion Film Festival Milano and has over 54,000 views to date. With the hashtag #WhoMadeMyClothes as the channel for the movement, Fashion Revolution has increased general public awareness of the improper work conditions faced by garment workers in Bangladesh, India, and other developing countries with cheap labor. This increasing awareness has pushed fashion companies to be more transparent about their manufacturing and supply chain process. As of June 2018, 172 brands across 68 countries have revealed more information about their supply chains than in previous years. In response to the hashtag, #WhoMadeMyClothes, more than 3,838 global brands took to social media to respond with real information about their suppliers and workers. A study published in 2011 found that while in most cases anti-sweatshop movements did not affect sales for companies using sweatshops, they did correspond with a decrease in the sales of well-known, more specialized brands and more intense movements caused more significant reduction in the sales. The same study also found that anti-sweatshop events also seemed to correspond with lower stock prices for the companies that were the target of these events, though some major anti-sweatshop events such the "Kaksy" lawsuit against Nike, did not result in any discernible change in stock price of the targeted company. The study found that 64.1% of the companies targeted by anti-sweatshop movements saw drops in stock price in the five days following the anti-sweatshop event, and 56.4% saw drops in the two days following the event. Though the study did find these slight negative economic effects, it did not find that, when taking into account companies of all reputations, anti-sweatshop movements or events damaged the reputation of the companies they targeted to a statistically significant degree; however, there does seem to be a slight undercutting of the reputations of companies with positive reputations when they are faced with anti-sweatshop campaigns, particularly intense ones.