Editorial: Imposing a ‘success tax’ on tech giants is a risky idea

The immense success of the tech firms based in Silicon Valley and the Bay Area has made California the fifth-largest economy in the world. The region’s culture of innovation has created vast amounts of new wealth and hundreds of thousands of jobs. But instead of welcoming this success, some lawmakers in the cities that are home to Apple and Google — Cupertino and Mountain View, respectively — want to tax it, following the lead of the Seattle City Council, which recently imposed a per-worker fee of $275 on Amazon and other big employers.