Consumer Intelligence Research Partners released results of its research on the market for used mobile phones. CIRP bases its findings on its survey of 1,000 US subjects that activated a new or used mobile phone in July-December 2013. CIRP finds that fewer than 20% of new phone buyers sell or trade-in their old phone. When they do, mobile carrier trade-in programs dominate the market. Disposition of Previous Phone Almost one-third of Apple iPhones get sold or traded-in. In contrast, fewer than 20% of Samsung phones are sent to the used phone market. …