Bachararch and Lawler's Dependence Theory of Bargaining Power
 
Power, according to Samuel Bacharach and Edward Lawler in Bargaining: Power, Tactics, and Outcomes (1981), is a central feature of bargaining and negotiation.  They regard "bargaining" as a process of managing impressions and manipulating information.  Bacharach and Lawler have developed a provocative and comprehensive theory of power in bargaining and negotiation.
 
Assumptions
Bacharach and Lawler's theory involves the following assumptions:
 
1. POWER IS THE ESSENCE OF BARGAINING.   It is the pivotal construct of bargaining.  This assumption emphasizes that
   a. Power the central organizing device of a bargainer's reality.
   b. Power is multidimensional:
      (1) Power as an outcome
      (2) Power as potential
      (3) Power as tactical action; the use of power.
 
2. BARGAINING IS A PROCESS OF TACTICAL ACTION.  Tactical action links potential power and bargaining outcome.
 
3. BARGAINING POWER IS SUBJECTIVE POWER.  Power in negotiation does not exist apart from bargainers'perceptions of it (within the bargaining situation and    relationship).
   a.  Power has an objective component (e.g., money, status, knowledge, reward).  The
        subjective component (bargainers' power perceptions and judgments), though, is
        more important to understanding potential power and tactical action.
   b.  Objective power influences bargaining through the actual interaction of  the
         negotiators.
   c.  Manipulating perceptions of power is a critical bargaining tactic.
 
A Dependence Theory of Power
Based on these assumptions, Bacharach and Lawler present a "dependence" theory of power.  Dependence refers, generally, to the degree that parties have a stake in the bargaining relationship.  The dependence relationship is not constant or fixed.  Negotiators bargain about the nature of their dependence  on one another.  Dimensions of dependence include:
 
1. ALTERNATIVES - The extent to which parties have alternatives via which they can gain similar outcomes.
 
2. COMMITMENT - The extent to which a party is committed to outcomes the other bargaining party controls.

3. Bargaining power reflects (in bargaining between Party A and Party B):
   a. A's alternatives to dealing with B.
   b. B's alternatives to dealing with A.
   c. A's commitment to outcomes B controls.
   d. B's commitment to outcomes A controls.
 
4. Bargaining power involves the parties' comparative dependence.
   a. The greater A's alternatives, the less B's power over A.
   b. The fewer A's alternatives, the greater B's power over A.
   c. The greater A's commitment to outcomes B controls, the greater B's power over A.
   d. The less A's commitment to outcomes B controls, the less B's power over A.
 
5. Power is influenced by manipulating perceptions of alternatives and commitment.
 
6. Persuasive argument is a primary way of manipulating perceptions of alternatives and commitment.
 
Three Forms of Power
Bacharach and Lawler identify three forms of bargaining power.

1. Absolute power - power of an individual irrespective of the other party's power.  A's absolute power is determined by B's alternatives and commitment.
 
2. Relative power - the dependence of one party compared to the dependence of the other party.  The ratio of A's dependence on B to B's dependence on A.
 
3. Total power - the sum of the parties' dependence upon one another.