Tariffs on China will remain at their current levels, according to Stephen Miran, a key architect of President Donald Trump’s trade policies. Miran’s comments come at a time when the administration is trying to calm nervous investors but offering mixed signals.

Companies like Alibaba that built China’s world-leading online shopping sector are now helping its sellers find markets beyond the United States.

President Trump on Wednesday dismissed concerns about bare store shelves as he spoke about his trade approach with China.