Is there a social cost of randomization?

Area of Science:

• Behavioral economics
• Social psychology
• Public policy

Background:

• Randomized controlled trials (RCTs) are standard for evaluating interventions, assuming outcomes depend solely on treatment receipt.
• Procedural utility, or satisfaction with the allocation process itself, can also influence recipient welfare.
• The impact of allocation mechanisms on potential recipients' perceptions and support is not fully understood.

Purpose of the Study:

• To investigate public support for random allocation of financial benefits versus direct allocation.
• To examine how procedural utility influences recipient reactions to different allocation mechanisms.
• To assess the role of endowment inequality in shaping support for randomization.

Main Methods:

• Experimental design involving participants acting as potential recipients of financial benefits.
• Participants could reward or punish an allocator based on their choice between direct allocation and randomization.
• Manipulation of endowment levels among potential recipients to create equal and unequal scenarios.

Main Results:

• When endowments were equal, participants on average rewarded the allocator for choosing randomization.
• With unequal endowments, poorer recipients punished randomization, while richer recipients remained neutral.
• This suggests that randomization can impose a social cost on disadvantaged groups.

Conclusions:

• Procedural utility plays a significant role in the acceptance of allocation mechanisms.
• Random allocation of resources may be perceived negatively by those with lower endowments.
• Policy decisions on resource distribution should consider the potential social costs of randomization in unequal contexts.