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How Collectors Deceive Their Partners

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11.02.2026

In relationships, small financial deceptions are surprisingly common. A recent study published in the International Journal of Environmental Research and Public Health (T Wirga et al., 2022) reveals the extent to which collectors also hide their spending from their partners, with striking differences in how men and women employ deception strategies.

Researchers surveyed 120 individuals who regularly spent money on collecting activities, such as model-making. The research examined not only whether collectors were honest about their spending but also the specific techniques they used to conceal costs from their partners. The research was conducted in Poland, with participants recruited from Polish collector clubs, gatherings, and other local events. The authors were affiliated with the University of Opole in Opole, Poland.

Both male and female collectors systematically concealed their expenses from their partners. However, the scale and methods of deception differed significantly between genders.

Male collectors spent substantially more than women and were less likely to reduce these expenditures. On average, men underreported their collecting expenses by approximately 30 percent. However, the percentage of concealment varied with spending levels. Men spending between $50 and $500 USD per month underreported by approximately 15 percent, whereas those spending over $501 USD underreported by approximately 38 percent.

Notably, men who spent more than $1,150 USD monthly stopped informing their partners about additional purchases altogether, suggesting potentially addictive collecting behavior.

Women exhibited a different pattern. They underreported........

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