With global economic ramifications on the line, those with a vested interest in supply chains and geopolitical stability watched closely and waited as high-ranking officials from the United States and China emerged from last week’s trade talks in London.Then, the public was told little. In the absence of an official readout from both sides, hope for a bit more clarity has given way to a fog of questions and buzzy speculation about what happened behind those doors.Was leverage being applied? By...