By John Dunnery Whether you’re a water polo player or a chess fanatic, a piano aficionado or an aspiring chef, there are times when you want to achieve peak performance. Perhaps you are taking a test, performing in a competition, or playing in a championship game. Maybe a special friend

©2015 Bloomberg View William Pesek (Bloomberg View) — On the way to remaking China’s economy, President Xi Jinping has hit many roadblocks: vested interests, a change-averse Communist Party, local officials accustomed to the status quo. Who knew the real barrier would be foreign investors? For years, the world has called