The rise and rise of the US dollar have been creating problems for many central bankers around the world. The dollar index, which measures the value of the dollar against many of America’s trading partners has been on a tear. Since the start of the year, it has already risen over 5%. That wasn’t supposed to happen. Experts were predicting that the US dollar would decline against most major currencies as the American economy weakened and inflation moderated, which would have prompted the US Federal Reserve to start cutting interest rates. That was the plan. Instead, the US economy has not only expanded, but inflationary pressures have been stubbornly sticky. There is even talk that rather than cutting interest rates, the Fed could hike them. Experts – probably the same ones that were predicting that the dollar would fall – are now predicting that it could now remain strong, if not rise further. Meanwhile, many central bankers aside from the Fed...