I am not an expert, and cannot answer your question. I just thought this paper may be relevant www.parisschoolofeconomics.eu/IMG/pdf/MCST.pdf

This may helpful for you 

https://www.researchgate.net/publication/23525133_Data_Games_Sharing_Public_Goods_with_Exclusion

http://www.ehu.eus/documents/1811331/1931394/goldmanis.pdf

http://doc.utwente.nl/98520/1/2631665.pdf

http://www.uv.es/~ecalvo/Emilio%20Calvo_archivos/Research/Research%20in%20Game%20theory.htm

http://www.eolss.net/sample-chapters/c14/E1-40-04-06.pdf

http://www.isid.ac.in/~pu/dispapers/dp08-12.pdf

https://www.researchgate.net/publication/5096692_Cost_Allocation_in_Collaborative_Forest_Transportation

http://www8.gsb.columbia.edu/programs/sites/programs/files/accounting/KOROKRAY.pdf

http://www.ipart.nsw.gov.au/files/assets/website/water/water_static_pages/swccostallocationmanual-wica-websitedocument.pdf

Article Data Games: Sharing Public Goods with Exclusion

Article Cost Allocation in Collaborative Forest Transportation

Thank you very much, it helps me a lot.

appreciated your comments Thank you

A number of articles by Fredo Schotanis from University of Twente, Netherlands talks about the equal price concept under cooperative purchasing. kindly check out two articles titled: Allocations of Gains (fair and unfair) under cooperative purchasing. They will be of great help. Check attached please

This articles by Fredo Schotanis are something that I was looking for.

Thank you very much for your help.