I use the metaphor ''markets as politics'' to create a sociological vi
ew of action in markets. I develop a conceptual view of the social ins
titutions that comprise markets, discuss a sociological model of actio
n in which market participants try to create stable worlds and find so
cial solutions to competition, and discuss how markets and states are
intimately linked. From these foundations, I generate propositions abo
ut how politics in markers work during various stages of market develo
pment-formation, stability, and transformation. Ar the formation of ma
rkets, when actors in firms are trying to create a status hierarchy th
at enforces noncompetitive forms of competition, political action rese
mbles social movements. In stable markets, incumbent firms defend thei
r positions against challengers and invaders. During periods of market
transformation, invaders can reintroduce more fluid social movement-l
ike conditions.