We examine the causal effect of tariff uncertainty on firms’ cost of debt. Our tests exploit a unique trade policy that reduces tariff uncertainty on Chinese imports without affecting the actual tariff rate: the U.S.-China Permanent Normal Trade Relations (PNTR). We find a significant drop in...

We study unanticipated tariffs on imports of intermediate goods in a setting with firm-to-firm supply relationships. Firms that produce differentiated products conduct costly searches for potential input suppliers and negotiate bilateral prices with those that pass a reservation level of match...

This paper empirically investigates the impact of tariffs when production is organized in global value chains. Using global input-output matrices, we construct four different tariff measures that capture the direct and indirect exposure to tariffs at different stages of the production chain for...

President Bush imposed safeguard tariffs on steel in early 2002. Using US input-output tables and a generalized difference-in-difference methodology, we analyze the local labor market employment effects of these tariffs depending on the local labor market's reliance on steel as an input and as...

Trade sanctions are a common instrument of diplomatic retaliation. To guide current and future policy, we ask: What is the most cost-efficient way to impose trade sanctions against Russia? To answer this question, we build a quantitative model of international trade with input-output...

We derive a new formula for the optimal uniform tariff in a small-country, heterogeneous-firm model with roundabout production and a nontraded good. Tariffs are applied on imported intermediate inputs. First-best policy requires that markups on domestic intermediate inputs are offset by...

On March 2018, the Trump administration introduced 25 percent tariffs on steel and 10 percent tariffs on aluminum imports. To minimize the adverse effects of these tariffs to downstream US producers who import these products, the exclusion request that grants tariff exemptions has been also...

Uniform tariffs have become increasingly popular in recent years, yet their economic rationale is not strong. We identify and evaluate three sets of reasons as to why governments may prefer tariff uniformity as a means of alleviating political motives for excessive protection. First, a...