Back in April, I wrote about one of the most troubling mysteries in economics, the falling labor share. Less of the income the economy produces is going to people who work, and more is going to people who own things. This trend is worrying because it contributes to increased inequality—poor people own much less of the land and capital in …

What’s the most important innovation behind the rise of renewable energy: Taller wind turbines? Smart power grids? Spray-on solar cells? None of the above. For all the advances made by engineers that cut the cost of solar modules and new wind generation by more than half in five years, the true heroes of the renewables revolution may be a group …

There’s a hard truth to understand for the many Catalans who intend to vote for independence on October 1: Regardless of the legality of their vote, its result can only stand if they are ready to fight for it — and if they can win in a violent conflict. As things stand before the independence referendum, Catalonia and Spain are …