The British Library has undertaken an economic evaluation of its services to determine how it generates economic value for its users and the wider public.  It found that the economic value the Library delivers for society is £5 for every £1 invested.

The study, published in 2013, shows how the Library is valued by researchers, business, academics, schools and visitors as well as those who do not use its services directly. The full report and executive summary is available for download.

This evaluation updates a similar study from 2004.  The documents associated with that study are also available for download.  More details here.