Speculation was rife about the performance of the US dollar as markets deliberated upon whether or not the US Fed would hold firm on interest rates, or tighten its monetary policy.

The Fed ultimately decision to pause rates, while also signalling that borrowing costs will increase by another 50 basis points by end-December, causing the greenback to rally in Asian trading. How and why did this happen?

Meanwhile, the Japanese yen fell to a 7-month low following the Fed's decision. Was this surprising, and how have other Asian currencies fared?

On Money in the Market, Emaad Akhtar speaks to Simon Harvey, Head of FX Analysis at MonFX, to find out more.