Tariffs up one day and down the next.

This is economic policy set by the whims of one man, leaving businesses bewildered and consumers alarmed.

As Donald Trump drives his trade war, what will become of a global economy dependent on close trading links?

Top financial journalist Philip Coggan lifts the lid on Trump's economic gamble, why it's such a threat and how we can make sense of this new 'age of chaos'. The result is a rallying cry for the importance of global trade and a reminder of the dramatic changes to geopolitics and economics that we all need to understand.