title: Who is prepared to pay, and how much?
authors.forename: J
authors.initials: J
authors.lastname: Velterop
mesh_terms: D001319:Authorship; D003132:Commerce; D003365:Costs and Cost Analysis; D020407:Internet / Q000191:economics; D010506:Periodicals as Topic / Q000191:economics*; D011643:Publishing / Q000191:economics*