During the holiday season, unhappy customers took to Twitter their discontent about snags in their holiday shopping experience. They used the hashtag #GhostEconomy to mark their tweets where they complained about instances when retailers had failed them: from wrong delivery of items, to difficult returns even in the case of damaged items, to late order cancellations due to stockouts. Ghost Economy is a term used to describe the loss of revenue opportunities because of overstocks, out-of-stocks and returns. A research from retail analyst firm IHL Group reveals that retailers worldwide lose a staggering $1,75 trillion every year –that is, 11,7% of their revenues - to the Ghost Economy. Stockouts are especially problematic for retailers: when faced with unavailable products, 31% of consumers end up buying elsewhere, and 24% will either buy later or not buy at all.