China's economic reforms began in

Central banks often intervene in currency markets. This activity is called

A) managed floating. B) fixing exchange rates. C) currency warfare. D) super-pegging. E) flexible floating.

An incumbent monopolist producing more output than necessary might be able to keep potential rivals from entering

A) by flooding the market with products below its marginal cost in the short run. B) if learning by doing reduces marginal cost. C) if the long-run marginal cost can be lowered below the potential entrant's short-run marginal cost. D) All of the above.