U.S. consumer spending on Black Friday (the Friday after Thanksgiving) and on Cyber Monday (the following business day) increased from the same days a year ago, according to two industry reports. Online spending in the U.S. during the two days increased dramatically, according to Retail Decisions Plc, a United Kingdom-based supplier of issuer, fraud-prevention and processing services. Online spending on Black Friday reached $3.1 billion, up 52% from roughly $2.02 billion last year, while it rose 35% on Cyber Monday, to $2.2 billion from roughly $1.63 billion, according to Retail Decisions. "Online retailers started discounting heavily on Black Friday, luring consumers with cash-back offers, free shipping and special deals on the most popular products," Carl Clump, Retail Decisions CEO, said in a statement. Transaction processor First Data Corp. in a separate report also noted overall transaction growth on Black Friday. Total transactions that day increased 7.9%, and same-store sales volume rose by 4.8%, according to First Data, which declined to provide specific purchase data. PIN-debit transactions increased 8.9%, while sales volume with the debit cards increased 7.6%. Credit and signature-debit volume rose 5.8%, while sales volume increased 2.5%. "Black Friday was better than last year both in terms of transaction growth and total dollars spent at the point of sale," Silvio Tavares, senior vice president of investor relations and decision support at the Atlanta-based company, said in a statement.