We regularly see financial bubbles - in my lifetime there was the big property boom in the 1980s, which then burst spectacularly in the early 90's - remember negative equity? People thought their properties would never rise in price again, yet by the mid to late 90's we were off again - into another, and even more spectacular property boom that has continued to this day.

 

 

Then there was the TMT shares boom & bust of 1998-2002. I recall how value investing just stopped working in 1998, and the only way to make money was to throw away the rule book and just buy any old story stock, which just went up and up in price. Until the bubble popped in March 2000, and practically all of the boom stocks joined the 90%, and some even the 99% club - measured by the % fall from their all time high.

 

Arguably Gold has just been another bubble in recent years, and there are numerous other overseas examples - emerging markets boom and bust, in fact the whole financial system is built around boom and bust. Gradually we are realising that markets are not efficient, and that human beings, even highly intelligent and trained ones, are absolutely not rational for a lot of the time - but tend to operate in herds, where group-think takes hold, and despite everyone knowing that what they are doing is wrong, they continue doing it. Then when the bubble bursts, the carnage can be very ugly indeed.

People who were regarded as geniuses for holding fashionable assets as they roared to ever more irrational over-valuations suddenly become fools almost overnight - we've seen that this year with the ludicrous over-valuation of stocks like ASOS and Ocado - what on earth were people thinking, chasing up the share price of the former to a forward PER of over 100? Or the latter, to a £multiple-billion valuation, despite it having a deeply flawed business model that is missing targets, and arguably looks unlikely to ever make a decent profit, due to cut-throat competition and low margins?

 

So that brings me on to central London property - surely the latest boom, with potential bust on the horizon? The press have recently reported that a…

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