:U.S. fintech firm Fiserv will buy Canada's Payfare in a C$201.5 million ($140 million) deal as it looks to expand payments offerings for gig-economy workers, the companies said on Monday. The transaction, expected to close in the first half of 2025, comes months after Payfare began a strategic review of its business, and values its stock at a 90 per cent premium to last closing price. The deal will allow Fiserv to expand its footprint in a fast-growing market. Gig-economy workers often access