In the near-zero interest rate environment that the Federal Reserve has imposed on us for more than a decade, a question vexing many of the most successful corporate executives is what to do with the cash building up on their balance sheets. Big Tech, no surprise, is sitting on the motherlode. Apple has $190 billion of cash. Alphabet, the parent company of Google, has a cash pile of $142 billion. Amazon has $79 billion in cash. Meta, formerly Facebook, has $58 billion. Microsoft, the second most valuable company in the United States, with a market value of $2.2 trillion, has a cash balance of $131 billion. Or it did, until last week, when the company announced that it would be using about $70 billion of it to pay for Activision Blizzard, its shiny new gaming behemoth.