President Donald Trump signed an executive order on May 12 directing drugmakers to lower the prices of their medicines so they line up with what other countries pay.

Reuters, the news and media division of Thomson Reuters, is the world’s largest multimedia news provider, reaching billions of people worldwide every day.

Rather than cutting prices there, many firms would raise them abroad and perhaps pull out of some countries altogether, meaning Mr Trump’s policy would shrink their businesses while doing little to lo...