The advent of mobile phone financing has given U.S. asset-backed securitization a new twist with its unique risks and strengths relative to other consumer ABS, according to a new report from Moody’s Investors Service. Mobile phone financing represents a shift from the previous business model of subsidizing phone purchases for customers with two-year service contracts. Many cell-phone makers and wireless carriers, such as Apple, Samsung Electronics, T-Mobile, AT&T, Sprint and Verizon, now use financing contracts in most of their phone sales. The most common form of financing is...