Looking back over the three previous budget speeches delivered by Jim Chalmers, there's a recurring word that jumps out. In each, the treasurer has pointed to a backdrop of global "uncertainty". That word will surely be there again in the fourth budget speech Chalmers will deliver on Tuesday. In fact, "uncertain times" even made it into the headline of the pre-budget speech he delivered this week. "This is a new world of uncertainty," the treasurer declared. Few would argue with him. Loading... Geopolitics remain precarious Global uncertainty has only gone through the roof since the election to the White House...