Borrowing from a Depression-era idea, they are aiming to help consumers make ends meet and support struggling local businesses.

The systems generally work like this: Businesses and individuals form a network to print currency. Shoppers buy it at a discount — say, 95 cents for $1 value — and spend the full value at stores that accept the currency.

Workers with dwindling wages are paying for groceries, yoga classes and fuel with Detroit Cheers, Ithaca Hours in New York, Plenty in North Carolina or BerkShares in Massachusetts.