PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Re: Zero does not existWhile I think Mike hasn't been entirely clear on the subject, there is a sense in which the marginal cost is zero.The problem is that every good has both scarce aspects (the materials and processes involved in creation/distribution/storage) and a non-scarce aspect (the pattern of the good).
http://www.w3.org/ns/prov#wasQuotedFrom
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