So it turns out men are bigger impulse buy shoppers than women. A new CNBC/Acorns survey found that 25% of men said they spent more than $100 the last time they made an impulse buy, compared to 16% of women. “The stereotype of women as impulsive in their purchase decisions is an inaccurate one,” says Ross Steinman, a psychology professor at Widener University. “Impulse purchases are a result of consumer personality characteristics as well as a strategic placement of enticing stimuli in the shopping environment. “