Trade wars: An old hope
- We believe the US has been using tariffs primarily as a negotiation tool; China appears a special focus. But domestic political motives also appear to be a driver.
- We expect further tariffs hikes on Chinese products (including on an additional $200bn worth of goods). We expect tariffs on automobiles to be off the table for now.
- In line with other studies, we find that most of the impact on growth would not come from the direct channel (trade) but from the associated tightening in financial conditions. The scope of the latter is difficult to model (here we use event studies), and is hence associated with large uncertainty.
- In our central case tariff scenario, US GDP growth would be reduced by ¼ percentage points over two years and inflation higher by about 0.1ppt. This would not change our US Federal Reserve outlook.
- In a risk scenario of a 10% blanket tariff on all US imports (and similar retaliation on all US exports), the impact would be around 1.4ppt for growth and 0.3ppt for inflation over two years. This would likely pause the Fed’s tightening cycle.
- Conversely, successful trade negotiations could lead to more open global trade that would provide a modest boost to the growth outlook beyond our forecast horizon.
- We additionally highlight the risk that ‘successful’ trade negotiations and a domestic political incentive may result in President Trump returning to this policy in future years.
The shifting tides of US trade policy
US trade policy has been a key market focus with wild swings in policy announcements contributing to market volatility for much of this year. Any attempt to assess the impact of trade policy on the US economy is hampered by the shifting scale of US protectionism in a fast moving policy environment. Moreover, with tariffs having generally trended downward for several decades there is little recent experience of the scale of the impact of tariffs on the modern, supply-chain-integrated economy.
In this paper we consider what is driving the US administration to pursue a policy that both economic theory and history suggest will result in material economic damage, both to the US and global economies. We hope that in understanding the motivation for this policy we might understand the likely scale of its enactment.
We then estimate the impact of tariff increases on the economy. We use an approach centred around the use of the Federal Reserve’s (Fed) macro model. Our results are consistent with the alternative approaches modelled.
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