Thinking more about how book processing charges concentrate costs. The largest four monograph publishers in the UK (CUP, OUP, T&F, Palgrave) published 5,023 monographs in 2013 (source: Crossick report). At a £6,500 BPC (CUP price) this would cost £32,649,500. At an £11,000 BPC (Palgrave price) this would cost £55,253,000. At Ubiquity Press’s BPC of £5,050 (including copyediting) this would cost £25,366,150.