Rissho experiments find personal history outweighs reputation when people judge refusals to help

The participants in these experiments were bystanders. Each read a scenario in which one person helped or turned down a request from another, then rated the person who answered. The researchers varied two things about the requester: standing in the wider group, and whether that requester had earlier helped or refused the participant ^[3]. So the history that mattered was the judge's own, with the person who had been turned down.

That setup aims at a gap in the theory. Indirect reciprocity is the idea that people size up someone's moral standing through third-party reputation before deciding whether to help ^[10]. Earlier work concentrated on reputation that everyone shares ^[9]. Pitting the shared signal against the private one shows which wins when they disagree. With reputation, history and the response each taking two values, the design crosses into eight combinations ^[1]. Because the researchers assigned the cues themselves, the effect of history is causal within the scenarios ^[3].

Refusals moved in both directions. A requester with a bad reputation who had once helped the participant made turning them down look worse ^[5]. A well-regarded requester who had once snubbed the participant made it look better ^[6]. Neuroscience News described the first case as judged "far more harshly" and the second "much more leniently" ^[11]. Neither write-up gives the size of those shifts or the number of people who took part.

The forgiving case is reported only as a comparison, a refusal rated "more positively" ^[6]. The one refusal given an absolute label in the coverage is the most defensible case, and it landed at neutral ^[8]. On what was reported, personal history could make a refusal look worse or more forgivable. No condition described made refusing look good, and help got no such adjustment ^[7].

The thing this doesn't tell you is what people do next. These are ratings of written scenarios. Whether an observer who marks a refusal down would later decline to help the refuser is a behavioral question, and a rating task cannot answer it. The participants were in Japan ^[2], so the weighting of history over reputation is shown for that population and those vignettes.

"In everyday life, we judge others by combining many different kinds of information, including what we hear about them from others and what we have experienced ourselves," Yamamoto said ^[12]. "Our study provides one clue to understanding how people make judgments when these sources of information do not agree," he said ^[13]. His next project moves to settings where the cue that dominated here is scarce. "In future research, we would like to examine how people use reputational information in environments where direct personal experience is limited, such as online rating systems and AI-mediated judgments," he said ^[14].