You are involved in a tense labor negotiation.At the last minute your opponent threatens to scrap the whole deal unless you accept their "final offer."

1. Their threat is more believable if they have a strong outside options
2. Their threat is more believable if only your opponent is hurt from the deal falling through
3. Their threat is more believable if they have failed to follow through on threats in the past
4. Their threat is more believable if both of you would be serously harmed by scrapping the deal