US Dollar Slide To Support US Growth

 | Aug 13, 2017 04:46AM ET

One of the more surprising developments of 2017 has been the weakening of the US dollar. Since the start of the year, the greenback has declined by 5% against a basket of the world’s most traded currencies. This has happened despite the Federal Reserve hiking interest rates twice in 2017 while also signalling its intention to deliver another rate hike and start unwinding the balance sheet by the end of the year.So then, why has the dollar fallen? The lack of progress on promised fiscal stimulus implementation, low inflation and foreign currency appreciation are the main factors causing dollar weakness.

The first factor behind the dollar weakness is fading investor optimism about President Trump’s fiscal stimulus. In the aftermath of the election, inflation expectations rose on the promise of a massive tax cut and spending package, pushing US yields and the dollar to new heights by the end of 2016.However, since assuming office in January, the new US administration has failed to implement its promised fiscal measures, being bogged down on other legislative issues such as health care.This has virtually eliminated the possibility of stimulus being implemented this year and reduced expectations of the magnitude of any possible stimulus in the future.

The second factor is that inflation has disappointed. Core personal consumption expenditure (PCE), the Fed’s preferred measure of inflation, has declined throughout the first five months of 2017 even though the US labour market has continued to improve. As a result, some market participants have responded to tepid inflation with caution, fearing that inflation weakness may be persistent and not temporary as the Fed believes (see our recent commentary, Fed eager to tighten despite low inflation worries ). This has pushed down inflation expectations and created doubt about whether or not the Fed would continue on its current path to raise rates, putting downward pressure on the dollar.