> ... because it assumes the data is valuable! In reality a significant chunk of it is made up ... Yes, but made-up data is also valuable. Were this not true,

> ... because it assumes the data is valuable! In reality a significant chunk of it is made up ... Yes, but made-up data is also valuable. Were this not true, the world of advertising would collapse. An earnest economic evaluation has to assess the value of data apart from the issue of whether it accurately reflects reality.