OECD Education Working Papers No. 76 reports that the government of Norway now insists on free sharing of publicly funded learning materials. (No mention of open licensing.)
Norway reports that the large government involvement in learning materials depends on the fact that both written and digital materials are free of charge to students in primary, lower secondary and upper secondary education (International Standard Classification of Education (ISCED) 1 to 3).
Hylén, J. et al. (2012), “Open Educational Resources: Analysis of Responses to the OECD Country Questionnaire”, OECD Education Working Papers, No. 76,
OECD Publishing. http://dx.doi.org/10.1787/5k990rjhvtlv-en pp.8-10