The US has less to lose than many of its trading partners, given it has a stronger economic footing and a more closed economy than most. At the other end of the spectrum, Europe and many emerging markets are more at risk.
The likely impact on interest rates and central bank policy could be mixed. Slower growth suggests easier monetary policy, although globalisation has been a strong deflationary force (along with technological advances) over recent decades.
A reversal of this could fuel higher prices and inflation over time, providing further impetus for interest rates to rise. Having said that, an escalation would initially see interest rates fall as nervous investors look to the safety of bonds and fixed interest.
For New Zealand, the direct impact of the current ructions is limited. However, China is our biggest export market (taking almost 20 per cent of our good and services) and the US is number three with 11 per cent.
As a small, open economy we are highly dependent on our ability to do business easily with the rest of the world. We rely heavily on exports, which account for some 30 per cent of our gross domestic product and this is a space we need to monitor closely.
For now, global sharemarkets are taking these uncertainties in their stride. Maybe they're being a little complacent, or maybe the strong earnings growth we're seeing is offsetting the tariff worries.
It's possible the trade tensions subside, with public hearings and a review process still to come in the US and the response from China an unknown quantity.
However, President Trump seems happy to sacrifice some growth in exchange for a stronger political position heading into the US mid-term elections in November, and beyond.
Mark Lister is Head of Private Wealth Research at Craigs Investment Partners. This column is general in nature and should not be regarded as specific investment advice.