Minimum-wage policy is a fraught issue. People involved in the public debate — writers, business leaders, politicians and think-tankers — often defend their positions with a passion and commitment reserved for religious disputes. That makes it challenging to bring data to bear on the conversation. Nevertheless, as the weight of evidence piles up, it’s getting harder and harder to …

  Good news! Twitter’s business is not doing terribly by the low, low standards of Twitter. Well done. In the first quarter, Twitter Inc.’s revenue fell from the year-ago quarter for the first time. Twitter doesn’t turn a profit, and now its sales are shrinking, too. That is … not good. But Twitter executives had told investors to brace for …

  Just before Earth Day, Apple Inc. announced a new goal: to make its computers and phones and watches without mining any new raw materials. Instead, Apple would one day build its products “using only renewable resources or recycled material.” This is what’s known as a “closed loop,” in which new products are made exclusively from older versions of the …