Business and politics are not too different in that change is constant and adaptation is essential to survival. When commodity prices increase, the sector attracts younger, more skilled workers. When commodity prices decline, there is consolidation. Xi Jinping and Donald Trump are trying to calculate whether their respective political markets have more room for risk-taking or if it is time to consolidate. The U.S. and China are said to be working on a trade deal, but while President Trump boasts of new impending tariffs, his trade representative, Robert Lighthizer, says he expects there to be a meeting of the minds in Buenos Aires. In a similar vein, President Trump says he does not expect significant congressional opposition to his U.S.-M...