The document discusses the evolution and features of swap markets. It begins by defining a swap as an agreement between two counterparties to exchange cash flows in the future, with terms like payment dates, currencies, and calculation of cash flows determined by the parties. The origin of swap markets is traced back to the 1970s in response to exchange rate instability. In the 1980s, multinational corporations began using swaps as more flexible alternatives to loans. Standardized documentation helped fuel growth, and new types of swaps like interest rate and currency swaps emerged. The key features of swaps discussed are counterparties, facilitators, cash flows, documentation, benefits, termination, and default risk.