Why the US share market is so strong this year

In the investment world, we all watch the Standard and Poor's 500 index, a well-known measure of US corporations and the US share market known simply as the S&P 500. So far this year, it's up more than 15% – not too shabby. The New Zealand dollar has depreciated around 7% and can now buy just 59 US cents. So, if you had some of your investments in the US share market this year, they would have gone up more than 20%, measured in NZ dollars – again, not too bad. Compare that to the S&P/NZX 50 index,...