How individuals allocate resources across social groups depends on economic conditions. While prior research has documented strong in-group favoritism in domains reflecting favorable economic conditions, it remains unclear how this tendency shifts in domains that reflect economic downturns. We...

We study the aggregation of partial orders into a complete ordering, and prove both possibility and impossibility results in this context. First, we show that the standard independence of irrelevant alternatives condition is stronger here since even dictatorial aggregation rules may fail to...