Online sales hit record high amid holiday shopping season

American shoppers spent a record amount online this holiday season as overall retail sales jumped 3.4 percent, a new report shows. E-commerce sales spiked 18.8 percent from last year and accounted for 14.6 percent of all holiday retail despite a shorter post-Thanksgiving shopping season, according to Mastercard's SpendingPulse report. “E-commerce sales hit a record high...