Aksel Erbahar, Yuan Zi, 12 February 2020

Less than two years after his steel and aluminium tariffs came into effect, President Trump decided to increase the coverage of these tariffs to several downstream products whose domestic producers were hurt by the original tariffs. This column, first published in 2016, presents evidence for such ‘cascading protection’, showing how US protection of inputs increases the probability of petitions for protection by their downstream users.

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