Cutting interest rates appears to stimulate more than just the economy with Bank of England researchers saying an extra 14,500 babies were born in 2009 after it cut borrowing costs during the financial crisis.

The Bank of England researchers wanted to see if the influence of central bankers went as far as families considering whether or not to have a baby. 

They estimated that for each one percentage point reduction in benchmark interest rates, birth rates rose by 5% among families paying adjustable-rate mortgages that go up or down along with the Bank of England's main interest rate. 

"On average for the UK, a one-percentage-point decline in the policy rate increases birth rates by 2%," they said in a paper published recently. 

In contrast with Britain, the birth rate in US fell during the period studied by the researchers, something they linked to the prevalence of fixed-rate mortgages in the US and the impact of property price declines.

"Our descriptive comparisons with the US suggest that if more families had been able to obtain a lower interest rate, the US might not have experienced as severe of a 'baby bust' int he Great Recession," they said.