There is a fair amount of research into group dynamics and group decision making, specifically in the context of alpinism. For example [1], written in English, from the "Berg und Steigen" blog.

In general, I can't recommend German-language "Berg und Steigen" magazine enough. It's focuses on safety and risk management in mountain-related activities (mountaineering, indoor/outdoor climbing, skiing, ski touring, mountain biking, ...). Older issues become completely freely accessible in their archive [2].

[1] https://www.bergundsteigen.blog/human-factor-and-decision-ma... [2] https://www.bergundsteigen.at/?module=archiv/ausgaben