The first three months of 2017 have brought us plenty to write about: Britain’s formal triggering of Article 50; the inauguration of President Trump; good news for Europe, both politically and economically, and an acceptance in China that their economy will grow at its slowest rate for more than a quarter of a century. On the world’s stock markets, two of the markets we cover were up by more than 10% in the first quarter of the year: one is down by that amount. The rest have, in the main, moved more sedately in the right direction. Let’s make a start…