A timber and log public supplier and a lumber manufacturer negotiate a roundwood log supply contract.
While the lumber manufacturer is a profit-maximizing agent, the timber and log public supplier can be either public-interest-oriented or profit-maximizing.
The unique equilibrium log supply contract only involves the price negotiation.
The supplier's public interest and the manufacturer's bargaining power work as strategic substitutes.
The renegotiation reveals a memory effect over the quantities issued from bargaining.