Lamarr and Anthiel received a patent in 1941, but the enormous significance of their invention was not realized until decades later. It was first implemented on naval ships during the Cuban Missile Crisis and subsequently emerged in numerous military applications.
Cash back credit card reward programs started out rather simply, offering a flat percentage rate (typically 1 percent of purchases) rebated back to the customer in the form of a check at the end of the year or a statement credit.
Your rewards are negated by interest. Psychology. The fundamental goal of credit card companies when issuing cash back cards is to encourage people to spend more. Indeed, the incentive to âearnâ money back does seem to result in people being more willing to use credit cards to make purchases.