Chancellor Sajid Javid has said the Conservatives will grow the economy by 2.75% a year, about double its current rate of growth.
Jagjit Chadha, director of the institute of the National Institute of Economic and Social Research, points out that target isn’t far off the economic growth seen in the decades after World War Two.
In the years since the 2008 financial crisis that rate has fallen to about 1.75% a year.
“Since the financial crisis it’s been all about increasing employment in the country rather than productivity. In order to get anywhere near that that kind of number we are going to need a very large increase in productivity,” Mr Chadha said.