The document defines key terms related to financial systems and markets. It explains that a financial system allows the transfer of money between lenders and borrowers and consists of financial institutions, markets, instruments, and services. Financial institutions provide services like acting as intermediaries between lenders and borrowers. Major types include depository institutions like banks, contractual institutions like insurance companies, and investment institutions. Financial markets allow trading of securities and commodities at low costs. They facilitate processes like resource transfer and capital formation. Common financial instruments include cash instruments like stocks and bonds, as well as derivative instruments.