Modern currency, often referred to as money, is a medium of exchange that facilitates transactions for goods and services. It can take various forms, including physical coins and banknotes, as well as digital representations like cryptocurrencies and electronic funds. The value of modern currency is typically determined by government regulation and public trust. In today's economy, fiat money is the most common type of currency, meaning it has value because a government maintains it and people have faith in its worth. Modern banking systems and financial institutions play a crucial role in managing and distributing currency, ensuring that it remains a stable and reliable means of exchange.