| Summary/Abstract |
It is frequently argued that informal groups are established, designed and maintained because of their effectiveness in addressing common security challenges. The quartet’s poor record in conflict mediation defies this view. Putting forward a ‘power-based’ argument, this article identifies key motivations that can sustain informal cooperation even in the absence of effective collective action. Specifically, cooperation in the Quartet rests on an “implicit bargain”. The weaker parties accept leadership by the USA, providing the most powerful member with a legitimizing function and additional clout. In return, they gain a seat at the diplomatic table resulting primarily in ‘reputational’ advantage.
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