Global stock markets have largely shrugged off President Donald Trump’s renewed tariff campaign. In commodities markets, however, tariff threats have sent the price of copper soaring to all-time highs ...

Copper is at the core of the American economy. It's in the wires of our pervasive electronics, in the walls of homes and in the engines of cars.

The first cause for concern is valuations, as outlined by Torsten Slok, partner and chief economist at Apollo Global ...