(Harvest) From the US-China trade war to the ongoing Brexit negotiations, global investors are grappling with a wide array of unpredictable events. Yet with the right approach, equity portfolios can confidently cope with the next bout of market uncertainty.Equity investors are digesting many challenges to short- and long-term stability. Macroeconomic and demographic fault lines are widening, driven by unequal wealth distribution and political polarization. The US fiscal deficit, Chinese corporate leverage and the aging populations in Japan and Continental Europe signal trouble ahead. The question is: what will trigger the next earthquake, and when?