Over the past four weeks, we have looked at the main issue around forecasting and whether we can predict a boom or a bust. And of course we could easily fall into the trap of using hindsight - the investors' worst enemy.
Conversely sometimes it seems so obvious. About three weeks ago, the New Zealand dollar was very high and the price for milk solids - our biggest export - had been falling sharply all year, down 42 per cent. It seemed obvious that the New Zealand dollar was too high, and indeed it has fallen against the US dollar from 86 cents to 81 cents - a fall of 6 per cent so far.
But that is right now, what about next week ? Yes, the high New Zealand dollar did seem obvious, but who would be brave enough to take a big position? Professional currency traders often lose big money, so it is not that easy.
Picking the top of a boom is important for all sorts of people:
*All investors.
*People with businesses or farms to sell, or who are thinking of selling.
Business owners and farmers.
*People, businesses, and farmers who have lots of debt.
*People who own more than one house, or who have an expensive house.
*People who have most of their money in one big asset.
*People who own shares.
*People who own a lot of bonds.
*Tourism. A falling Kiwi dollar may attract more tourists, so not everyone will hurt if New Zealand has a sharp economic slowdown. But if it is a global slowdown, tourism will hurt too.