I know the 70's was a decade of turmoil and high inflation etc but a 7% average seems very high when it's been so low for so long and the economy has been relatively stable for the last 30 years of the 50 year timespan.
I always like to take a look at the historical graphs and amazingly the 7% is correct though this graph doesn't appear to be stating the figure but the link I clicked did
External Link/Members Only.
I think many people perhaps get a bit mixed up between interest rates and inflation rates which have only really gone and stayed low in the last 30 years since 1993
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I think this is why it's such a shock for people now in that it's been so low and stable for so long, many younger people won't remember how shit things were in the 70's
The 70,s I remember were nothing like now

, life was going on, no mention of food banks, starving cold people, the old mans business was thriving and did not have a care in the world through my teens and into the 80,s

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Bought my first house early 80,s, did not like where it was, so bought another in London without selling the first beforehand, no recollection of interest rates being prohibitive or being scared of heating the house, filling the car or even thinking about the price of food.
Though the council were not thinking up ways to take your disposable income if you dared to drive a car, many more pubs than now were thriving, nightclubs were affordable, take away food was not the norm and there was not a load of Apps that supposedly make life easier, while training you to pay them and if you wanted something you went to buy it if you could afford it, not on tick.
As @Estats says, it is cheap credit and being persuaded you need the latest tech all the time, need all these things that supposedly make your oh so busy life easier, at a fee, being persuaded you can afford what you really cannot, is where the problems have stemmed from.
Give me the 70,s over today anytime. At least the politicians seemed to be honest
