Further, Granovetter relates “threshold” with utility one gets from participating in collective behavior or not, using the utility function, each individual will calculate his or her cost and benefit from undertaking an action. And situation may change the cost and benefit of the behavior, so threshold is situation-specific.
Granovetter associates the "threshold" with the utility derived from collective behavior participation. Each individual calculates their cost and benefit to decide whether to engage in an action. The context influences these calculations, rendering the threshold situational.