Answer:
be interest-based
Step-by-step explanation:
An interest based negotiation is the one that that parties involved seek a win-win resolution to their dispute. In this type of negotiation, the position of both parties are carefully explored so that a mutually beneficial agreement will be reached.
The disputants in this type of negotiation focus on settling their dispute amicably, such that no one losses. The interest of each party is protected here.
With regard to the above, Jing and Tim is trying to resolve their dispute through an interest based negotiation.