I would certainly believe it, considering (naively) that one expects the cost of implementing a standard to be directly related to the length of that standard:

I would certainly believe it, considering (naively) that one expects the cost of implementing a standard to be directly related to the length of that standard: checking the ISO Publicly Available Standards page[0], I found 6760 pages of Office Open XML standard (ISO 29500) and 1996 pages of Open Document Format standard (ISO 26300).[1] [0] http://standards.iso.org/ittf/PubliclyAvailableStandards/ http://standards.iso.org/ittf/PubliclyAvailableStandards/ [1] The link to Technical Corrigendum 2 for Open Document Format in [0] is broken, so I included a version I found at https://www.nen.nl/pdfpreview/preview_166227.pdf https://www.nen.nl/pdfpreview/preview_166227.pdf, which was seven pages long.