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Crime really doesn't pay - a third of bank robbers make nothing at all - June-11-12
Source: The Telegraph (Telegraph Staff)
Contrary to heist movie portrayals of unimaginable wealth, the takings from the average bank robbery are small, claims the report.
In fact they often appear to be lower than the cost of installing some security devices designed to deter them.
With unique access to a set of data from the British Bankers' Association, the study presents an economic model of the bank heist, balancing the raider's efforts against his gains or losses and concludes that it is often a poorly paid career path.
The average proceeds from a bank robbery in the UK are £20,331, with a third of robberies yielding nothing at all.
The average takings per person per successful raid are a modest £12,706.60p, equivalent to less than six months' average wage. In the United States the average raid yields considerably less at US$4,330. If a robber carries out multiple raids to boost his sub-average income, probability says that after four raids he will be inside for some time and unable to earn at all.
The research team, leading economists from the Universities of Sussex and Surrey, highlight factors influencing the success of bank raids. These included the number involved in the raid, dubbed 'labour input', and whether firearms were displayed, called 'capital input'.
The presence of firearms increased the rewards across all bank raids to an average return per person of £10,300.50p. There was a clear connection between the number of raiders and total takings - the bigger the gang, the greater the success, with every extra gang member raising the take on average by £9,033.20p. Even so, with extra gang members to share the proceeds, the haul per person decreases.
Deterrent factors working against the raiders - such as bank security measures, activated alarms, and the number of bank staff and customers present - were also examined for their effectiveness. Of these, fast-rising security screens, which are present in only 12 per cent of UK banks and in even fewer banks in the USA, were most significant, reducing the probability of a successful raid by one third.
Even so, the financial losses to banks through raids are reasonably low compared to the cost of installing additional fast-rising screens, which might explain their low prevalence. The authors acknowledge that bank robberies involve other costs - such as social and psychological ones - and that these may increase the social gain available from such measures. They also note that additional data would allow valuable follow-up research.
Professor Neil Rickman, of the University of Surrey, said: "Although bank robberies will take place for a number of 'impulse-related' reasons, our evidence suggests that the takings they generate appear to be consistent with economic theory.
"This is useful information if we are thinking about how such activity may be combated in the future."
The findings were published in Significance, the magazine of the Royal Statistical Society and the American Statistical Association.
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