What are certificats that represent money?

Certificates that represent money are financial instruments that serve as proof of ownership or entitlement to a specific amount of money or assets. These include certificates of deposit (CDs), which are time deposits offered by banks, and treasury bills (T-bills), which are short-term government securities. Other examples are money market certificates and bearer bonds, which represent a claim to cash or other financial assets. These certificates can be traded or redeemed, providing liquidity and security to investors.