Stories of investment 'booms and busts' abound. Sometimes they're called 'bubbles' and the word 'bust' is changed to 'burst' because......... that's what bubbles do. I use the words 'bust' and 'burst' interchangably. The word 'mania' can used instead of 'bubble'. They mean the same thing: the price of an asset (or asset class) gathers such upward momentum that people trade the asset for increasingly ridiculous prices relative to the how the asset was previously valued. The price is chased upwards until it reaches a peak and then plunges like a lead balloon.
At the peak of big bubbles, although humans are unaware, spacecraft are rumoured to have been spotted in the sky as alien news reporters are dispatched from outerspace to report on the bizarre behaviour of those involved in the bubble. ;-)
In part one, I would like to take a closer look at the common features of bubbles and, in part 2, I will see how human behaviour contributes, and is affected, by them.


