“The San Francisco Fed said that recent research suggests the tax cuts could boost the economy very little — or perhaps not at all. A safer bet is that the explosion of buybacks will help enrich corporate executives, whose compensation is often linked to their share price. Last month, an SEC official detailed a disturbing trend: In the days after companies announce buybacks, execs quietly cash out their own shares. Daily stock sales spiked from an average of $100,000 to more than $500,000 per executive, according to SEC Commissioner Robert Jackson Jr.”