“Once you get into the credit economy … you start getting exposed to hidden fees, penalties, identity theft, and it also induces overbuying,” says Ralph Nader.

Prices are rising, rates are climbing and supply is dwindling. That puts people who already own a home ahead.

A large number of Americans have gone cashless, but many still have to rely on it.

Jay Zagorsky of Boston University paid his taxes in $100 bills and exact change. A cashless society has some disadvantages, he says.

This type of mutual fund invests in short-term, low-risk debt. Currently they’re earning higher interest than savings accounts.

Digital payment methods may render notes and coins obsolete in the United Kingdom and turn it into a cashless economy.

The number of notes out there has doubled since 2008, the Federal Reserve says.

Chinese mobile payment apps have surged in popularity. Could U.S. credit card companies compete?

How will ATM makers manage in a world where digital transactions are becoming more popular and cash is optional?