Title
Warning Against Recurring Risks: An Information Design Approach
Abstract
The World Health Organization seeks effective ways to alert its member states about global pandemics. Motivated by this challenge, we study a public agency's problem of designing warning policies to mitigate potential disasters that occur with advance notice. The agency privately receives early information about recurring harmful events and issues warnings to induce an uninformed stakeholder to take preemptive actions. The agency's decision to issue a warning critically depends on its reputation, which we define as the stakeholder's belief regarding the accuracy of the agency's information. The agency faces then a trade-off between eliciting a proper response today and maintaining its reputation to elicit responses to future events. We formulate this problem as a dynamic Bayesian persuasion game, which we solve in closed form. We find that the agency sometimes strategically misrepresents its advance information about a current threat to cultivate its future reputation. When its reputation is sufficiently low, the agency downplays the risk and actually downplays more as its reputation improves. By contrast, when its reputation is high, the agency sometimes exaggerates the threat and exaggerates more as its reputation deteriorates. Only when its reputation is moderate does the agency send warning messages that fully disclose its private information. Our study suggests a plausible and novel rationale for some of the false alarms or omissions observed in practice. We further test the robustness of our findings to imperfect advance information, disasters without advance notice, and heterogeneous receivers.
Year
DOI
Venue
2020
10.1287/mnsc.2019.3420
MANAGEMENT SCIENCE
Keywords
DocType
Volume
information design,Bayesian persuasion game,dynamic programming,statistical decision,global health,disaster management
Journal
66
Issue
ISSN
Citations 
10
0025-1909
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Saed Alizamir1162.13
Francis de Véricourt201.01
Shouqiang Wang301.69