Strategic Negotiations: A Theory of Change in Labor-Management Relations, a 1994 Harvard Business School Press publication, is a book on negotiation by the authors; Richard E. Walton, Joel Cutcher-Gershenfeld, and Robert McKersie.
[1] The book explains concepts and strategies of negotiation to the reader.
[2] Each represents an overarching pattern of interaction that characterizes the negotiations.
A strategy does not emerge all at once, but over time as a result of consistent patterns of interaction.
"Escape" is a non-negotiations strategy in which one or more parties seek to end or undercut the relationship, which leads to a loss-loss situation.