Trust Relationship in Large Group Emergency Decision-Making

Emergency decision-making requires perspectives from multiple decision-makers with different knowledge and experience to evaluate alternatives jointly and agree on the final solution. Researchers are developing the Large Group Emergency Decision-Making (LGEDM) framework, an assessment and evaluation process by 20 or more experts of alternative solutions in emergency cases. Trust relationship among experts participating in LGEDM is an important factor in the stages of LGEDM to reach the ideal consensus level. This literature review examines the development of research adapting trust relationships in the LGEDM framework, specifically from two perspectives (similarity-based trust and familiarity-based trust) and evidence of the effectiveness of trust relationships from previous studies. The study also identifies several opportunities from previous studies and provides recommendations for future studies.