Bitte verwenden Sie diesen Link, um diese Publikation zu zitieren, oder auf sie als Internetquelle zu verweisen: https://hdl.handle.net/10419/171655 
Erscheinungsjahr: 
2015
Schriftenreihe/Nr.: 
Economics Working Paper Series No. 15/212
Verlag: 
ETH Zurich, CER-ETH - Center of Economic Research, Zurich
Zusammenfassung: 
We integrate individual power in groups into general equilibrium models with endogenous group formation. We distinguish between formal power (the say in group decisions) and real power (utility gain from being in groups). Their values will be determined as part of the equilibrium. We find that higher formal power does not necessarily translate into higher equilibrium utility or higher real power. One reason is that induced price changes may offset the groupmember’s increased influence. A second reason is that the group may dissolve when a group member gains too much influence, because other members can exercise the option to leave. We also show that maximal real power can be compatible with Pareto efficiency. We further identify circumstances when changes of formal power in one group do not impact on other groups. Finally, we establish existence of competitive equilibria, including equilibria where some individual enjoys real power.
Schlagwörter: 
Group formation
competitive markets
power
exit
JEL: 
D41
D50
D60
Dokumentart: 
Working Paper

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