Chapter 7 - Dynamics: Competing across time Flashcards
microdynamics
the unfolding of competition over time, among a small number of firms
macrodynamics
the evolution of overall market structure
strategic commitments
commitments that alter the strategic decisions of rivals
if a commitment is to provoke a response, it must be:
- irreversible
- visible
- understandable
- credible
irreversible
if it carries no commitment weight, the desired effect will not happen
visible
or rivals will have nothing to react to
understandable
or rivals will have nothing to react to
credible
so that the rivals believe the firm will actually carry out the commitment
stackelberg model
suppose that instead of choosing quantities simultaneously (cournot), firm 1 can commit to Q1 before firm 2 selects Q2. Thus, firm 1’s choice of Q1 can influence firm 2’s choice of Q2
–> firm 1’s choice of Q1 completely determines total quantity and market price
strategic substitutes
when one firm chooses more of some action (e.g., output), and its rival firm cuts back on the same action
strategic complements
when one firm chooses more of some action (e.g., price) and its rival chooses more as well
reaction function is downward sloping when
strategic substitutes
reaction function is upward sloping when
strategic complements
direct effect (of commitment)
its impact on the present value of a firm’s profits if the competitor’s behavior does not change
strategic effect
competitive side of the commitment. How does the commitment alter the tactical decisions of rival and the market equilibrium?
tough commitment
conform to conventional view of competition as an effort to outdo one’s rivals (bad for competitors)
profitable (negative) strategic effect if involving strategic substitutes (complements)
soft commitment
it is good for its competitors (e.g., eliminating production facilities)
profitable strategic effect if involving strategic complements
Fudenberg & Tirole taxonomy of commitment strategies
Strategic substitutes
- top dog
- lean and hungry look
Strategic complements
- puppy-dog ploy
- fat-cat effect
top dog
assert dominance; force rivals to back off