May be you could find something valuable within the reasearch conducted by the Industrial Marketing and Purchasing Group ( IMP Group).Greetings Krzysztof Fonfara

May be this paper could help you

http://pubsonline.informs.org/doi/abs/10.1287/mnsc.47.5.693.10484

http://www.tandfonline.com/doi/abs/10.1080/03155986.2005.11732725

Suppliers operate in  competitive and supposed to be confidential environment. The paper can have a title like: There is never an end of the road for negotiation. If you like it you can send be a draft and I can offer some co-authorship.

Dr. K.R.Subramanian

1. How Does “3-D Negotiation” Move Beyond in a Dimension of a Win–Win–Win Approach for Integrated Bargaining Solution Analysis of Vertical Cooperative Advertising Campaigns?

https://www.researchgate.net/publication/260114877_How_Does_3-D_Negotiation_Move_Beyond_in_a_Dimension_of_a_Win-Win-Win_Approach_for_Integrated_Bargaining_Solution_Analysis_of_Vertical_Cooperative_Advertising_Campaigns?ev=prf_pub

2. The value of the ‘triple pole’ approach in bargaining for vertical cooperative advertising and the research challenges for the evolution of this topic in the cooperative advertising literature

https://www.researchgate.net/publication/260593965_The_value_of_the_%27triple_pole%27_approach_in_bargaining_for_vertical_cooperative_advertising_and_the_research_challenges_for_the_evolution_of_this_topic_in_the_cooperative_advertising_literature?ev=prf_pub

3. An Innovative Bargaining Solution Analysis for Vertical Cooperative Promotion Management Decisions

https://www.researchgate.net/publication/251538306_An_Innovative_Bargaining_Solution_Analysis_for_Vertical_Cooperative_Promotion_Management_Decisions?ev=prf_pub

Article How Does “3-D Negotiation” Move Beyond in a Dimension of a W...

Article The value of the ‘triple pole’ approach in bargaining for ve...

Article An Innovative Bargaining Solution Analysis for Vertical Coop...

You might look at "Seller's Information Sharing Strategy to Counter a Bid from a Rival Supplier:  A Study of Negotiations in Two Cultures,"  Abhik Roy and Michael B. Menasco, in Journal of Marketing Theory and Practice, Fall 2015, 23,4, 455-469.