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NEW YORK (Reuters Breakingviews) - Everything old is new again in finance. Navient, which services debt, is buying startup student-loan refinancer Earnest for less than half its 2015 valuation. Even then, it’ll eat into the new owner’s earnings and share buybacks. Worse, Navient faces a fresh lawsuit over dodgy practices. The Pennsylvania attorney general’s office filed charges on Thursday that follow ones from the U.S. Consumer Financial Protection Bureau in January with Illinois and...

NEW YORK (Reuters Breakingviews) - Fintech's faithful are putting payments on a pedestal. Square and PayPal shares are near all-time highs – as are those of venerable outfits like Visa, MasterCard and First Data. They’re each chasing what could be a $2.3 trillion revenue business by 2019, according to McKinsey. But they can’t all be winners. Privately held Stripe kicked off the frenzy last November when it raised $150 million in its fourth funding round. That doubled to $9.2 billion the...