Credit cards haven't just one beginning, the differentiate among who you ask. Jonathan Williams wrote in Money-A History- that credit cards were first issued by The Diners Club. In "Plastic Money" Huang Danwei writes that oil companies first issued a system of credit using cardboard cards

Credit cards had some major positive effects on our consumer world. Credit cards have made so much efficient by allowing businesses a boom. They gave businesses an increase in surplus. When incomes became low, credit cards smooth out consumption by allowing purchases to be made, whether you have actual money to back it up. It has also encouraged consumers to spend way beyond their income in capitalist countries.

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