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In a nutshell
- People actively avoid witnessing unfair situations to escape the mental burden of deciding whether to take action
- Having the power to punish unfairness actually makes people more likely to look away, not less
- When forced to witness unfairness, even those who typically avoid it are still willing to punish wrongdoers
OSAKA, Japan — What do you do when you hear bullying sounds coming from a nearby alley? Most of us keep walking, and new research reveals this choice is far more calculated than we might think. Scientists have discovered that people actively avoid witnessing unfair situations not necessarily because they don’t want to help, but because they want to escape the mental stress of deciding whether to act at all.
A study published in the Journal of Experimental Social Psychology challenges decades of research showing that humans naturally punish wrongdoers, even at personal cost. The results show that our supposed moral instincts might be largely artificial — products of laboratory conditions that force people to witness and respond to injustice.
The researchers found that people deliberately choose to remain unaware of unfairness. Rather than simple selfishness, avoidance represents a mental defense mechanism that helps us navigate difficult moral situations.
Researchers from Osaka Metropolitan University in Japan conducted three experiments using an approach called the Situation-Selective Third-Party Punishment Game. Unlike previous studies that forced people to witness unfairness before deciding how to respond, this experiment gave participants the choice to avoid seeing unfair situations altogether.
Participants faced two decks of cards in each round. One deck showed unfair monetary distributions 80% of the time (where one person kept most money instead of sharing fairly), while the other showed fair splits 80% of the time. Participants knew which deck was which before choosing.
The results were clear: when given the option to punish unfair distributors directly by reducing their payments through a tedious typing task, participants avoided the “unfair deck” even more than when they had no punishment options available. Having the power to act made people more likely to look the other way.
When People Can’t Look Away
Even participants who consistently chose the “fair deck” were willing to punish unfair behavior when they couldn’t avoid seeing it. This finding challenges the idea that people who avoid getting involved are simply callous or uncaring.
The researchers tested this across multiple scenarios. In Study 2, they gave participants the option to have cards chosen randomly rather than selecting them personally. Even with this easier option available, people still actively chose for themselves specifically to avoid the unfair deck, proving the avoidance was intentional.
In Study 3, people were less likely to avoid unfairness when they could respond indirectly — such as leaving negative feedback about unfair distributors rather than directly reducing their payments. When the cost of responding decreased, people became more willing to witness unfairness in the first place.
The Real-World Impact on Justice and Society
We’ve posted many studies about human morality here on StudyFinds, and this latest work looks at the way our compass moves through a very different light. We’re not simply selfish creatures who ignore injustice, nor are we natural champions of the oppressed. Instead, we’ve developed psychological strategies to manage difficult moral situations.
“Recognizing unfairness obliges individuals to consider whether to accept the cost of administering punishment, which can impose cognitive and psychological burdens even if punishment is not chosen to be administered,” the researchers explain. Knowing about injustice forces us into mentally taxing moral calculations that we’d rather avoid.
The research suggests that building a more just society requires understanding these psychological realities rather than expecting people to overcome them through willpower alone. Making it easier for people to respond to unfairness through less demanding methods or better support systems might prove more effective than simply urging people to act.
However, since this study only examined Japanese participants responding to artificial monetary scenarios, more research is needed to understand how these patterns apply across different cultures and real-world situations.
Paper Summary
Methodology
Researchers conducted three separate experiments with Japanese participants (Study 1: 255 participants, Study 2: 183 participants, Study 3: 305 participants) using a novel “Situation-Selective Third-Party Punishment Game.” Participants chose between two card decks—one showing unfair monetary distributions 80% of the time, the other showing fair distributions 80% of the time. Different groups either had options to punish unfair distributors directly (through effort-based tasks), indirectly (through negative feedback), or not at all.
Results
Participants consistently avoided witnessing unfairness across all conditions, but avoidance was strongest when direct punishment options were available. People with punishment options were significantly more likely to avoid the unfair deck than those without such options. However, when participants who typically avoided unfairness were forced to witness it, they still chose to punish unfair behavior. Indirect punishment options reduced avoidance behavior compared to direct punishment conditions.
Limitations
All participants were Japanese, limiting cultural generalizability. The study used artificial monetary distribution scenarios rather than real-world unfairness situations. Some experimental design elements could be improved, such as using monetary costs instead of effort-based punishment tasks. The researchers also note that factors like retaliation fear weren’t considered.
Funding and Disclosures
The research received no specific funding from public, commercial, or not-for-profit agencies. The authors declared no competing interests. They acknowledged using DeepL and ChatGPT for English proofreading, with final review by a native English speaker.
Publication Information
“Avoidance of altruistic punishment: Testing with a situation-selective third-party punishment game” by Kodai Mitsuishi and Yuta Kawamura, published in Journal of Experimental Social Psychology, Volume 116 (2025), Article 104695.