Economics, like the economy, cannot thrive without a little creative destruction. This article appeared in the Finance & economics section of the print edition under the headline “Barriers to ...

An open market is an economic system with little to no barriers to free-market activity. Open markets may have competitive barriers to entry, but never any regulatory barriers to entry.

Barriers to entry A rise in protection would worsen the already grim outlook for world trade. ... Overlaying the worsening economic outlook is the lingering threat of protectionism, ...