The Valuation of Unprotected Works: A Case Study of Public Domain Photographs on Wikipedia

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The Valuation of Unprotected Works: A Case Study of Public Domain Photographs on Wikipedia
Authors
Paul J. Heald
Kristofer Erickson
Martin Kretschmer
Publication date
2015
DOI
10.2139/ssrn.2560572
Links
Original Preprint

The Valuation of Unprotected Works: A Case Study of Public Domain Photographs on Wikipedia - scientific work related to Wikipedia quality published in 2015, written by Paul J. Heald, Kristofer Erickson and Martin Kretschmer.

Overview

What is the value of works in the public domain? Authors study the biographical Wikipedia pages of a large data set of authors, composers, and lyricists to determine whether the public domain status of available images leads to a higher rate of inclusion of illustrated supplementary material and whether such inclusion increases visitorship to individual pages. Authors attempt to objectively place a value on the body of public domain photographs and illustrations which are used in this global resource. Authors find that the most historically remote subjects are more likely to have images on their web pages because their biographical life-spans pre-date the existence of in-copyright imagery. Authors find that the large majority of photos and illustrations used on subject pages were obtained from the public domain, and authors estimate their value in terms of costs saved to Wikipedia page builders and in terms of increased traffic corresponding to the inclusion of an image. Then, extrapolating from the characteristics of a random sample of a further 300 Wikipedia pages, authors estimate a total value of public domain photographs on Wikipedia of between $246 to $270 million dollars per year.

Embed

Wikipedia Quality

Heald, Paul J.; Erickson, Kristofer; Kretschmer, Martin. (2015). "[[The Valuation of Unprotected Works: A Case Study of Public Domain Photographs on Wikipedia]]". Harvard Law School. DOI: 10.2139/ssrn.2560572.

English Wikipedia

{{cite journal |last1=Heald |first1=Paul J. |last2=Erickson |first2=Kristofer |last3=Kretschmer |first3=Martin |title=The Valuation of Unprotected Works: A Case Study of Public Domain Photographs on Wikipedia |date=2015 |doi=10.2139/ssrn.2560572 |url=https://wikipediaquality.com/wiki/The_Valuation_of_Unprotected_Works:_A_Case_Study_of_Public_Domain_Photographs_on_Wikipedia |journal=Harvard Law School}}

HTML

Heald, Paul J.; Erickson, Kristofer; Kretschmer, Martin. (2015). &quot;<a href="https://wikipediaquality.com/wiki/The_Valuation_of_Unprotected_Works:_A_Case_Study_of_Public_Domain_Photographs_on_Wikipedia">The Valuation of Unprotected Works: A Case Study of Public Domain Photographs on Wikipedia</a>&quot;. Harvard Law School. DOI: 10.2139/ssrn.2560572.