The document discusses securitization, which involves converting illiquid loans and receivables into marketable securities. Securitization originated in Denmark by selling bonds backed by equal amounts of loans. It later evolved in the US through innovations like slicing loan portfolios into tradable securities. A key part of securitization is the use of a special purpose vehicle (SPV) that purchases the loans, issues securities to investors, and uses the loan payments to repay investors. This separates the loans from the originator, protecting investors. Securitization provides originators with liquidity and long-term funding while transferring risk off their balance sheets.