Since their trade war began in March 2018, the United States and China have bilaterally imposed tariffs on more than $600 billion in goods, damaging both countries' economies, rattling global supply chains and shaking global markets. A phase one trade deal signed Jan. 15 by the two powers will now remove a major source of uncertainty for the world economy. But questions over compliance and implementation remain unanswered as the two countries begin to look ahead at possible negotiations over a more comprehensive agreement....
