purchase student loans in the secondary market and to securitize pools of student loans. Since its first issuance in 1995, Sallie Mae is now the major issuer of SLABS and its issues are viewed as the benchmark issues. Stranded cost utilities Rate reduction bonds (RRBs) came about as the result of the Energy Policy Act of 1992, which was designed to increase competition in the US electricity market. To avoid any disruptions while moving from a non-competitive to a competitive market, regulators have allowed utilities to recover certain "transition costs" over a period of time. These costs are considered non-bypassable and are added to all customer bills. Since consumers usually pay utility bills before any other, chargeoffs have historically been low. RRBs offerings are typically large enough to create reasonable liquidity in the aftermarket, and average life extension is limited by a "true up" mechanism. Others There are many other cash-flow-producing assets, including manufactured housing loans, equipment leases and loans, aircraft leases, trade receivables, dealer floor plan loans, securities portfolios, and royalties. Intangibles are another emerging asset class. Trading asset-backed securities "In the United States, the process for issuing asset-backed securities in the primary market is similar to that of issuing other securities, such as corporate bonds, and is governed by the Securities Act of 1933, and the Securities Exchange Act of 1934, as amended. Publicly issued asset-backed securities have to satisfy standard SEC registration and disclosure requirements, and have to file periodic financial statements." "The Process of trading asset-backed securities in the secondary market is similar to that of trading corporate bonds, and also to some extent, mortgage-backed securities. Most of the trading is done in over-the-counter markets, with telephone quotes on a security basis. There appear to be no publicly available measures of trading volume, or of number of dealers trading in these securities." "A survey by the Bond Market Association shows that at the end of 2004, in the United States and Europe there were 74 electronic trading platforms for trading fixed-income securities and derivatives, with 5 platforms for asset-backed securities in the United States, and 8 in Europe." "Discussions with market participants show that compared to Treasury securities and mortgage-backed securities, many asset-backed securities are not liquid, and their prices are not transparent. This is partly because asset-backed securities are not as standardized as Treasury securities, or even mortgage-backed securities, and investors have to evaluate the