Personal Finance

Study Shows The Best-Informed Shoppers Buy Store Brands

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walmart store aisle
Flickr / Walmart

If you're already defending your choice to buy generic against an onslaught of high-profile ads, there's new research to further bolster your case.

A study published at the National Bureau of Economic Research found that the more informed a consumer is about a product, the more likely they are to buy the generic or store brand, whether that's medication or baking supplies.

As Bloomberg View reports, there's a correlation between who knows the most about a product and who buys the (often cheaper) generics.

The researchers looked at seven years' worth of consumer data and found that expert behavior was markedly different from regular shopper behavior. Pharmacists, for instance, went for the brand-name (also known as "national brand") medication only 8.5% of the time, while the less knowledgeable shopper went for it 26% of the time.

Similar patterns arose when chefs went shopping for pantry staples like salt and sugar: The brand-name products made up 40% of total sales, but chefs bought only 23%.

Bloomberg View highlights a particularly intriguing pattern:

It's interesting that health-care professionals show no special interest in buying store-brand salts, sugars or baking sodas; for those products, their choices look a lot like most other consumers'. And while chefs do show a preference for store-brand headache remedies, it's not nearly as great as that of health-care professionals. For the most part, people’s knowledge is domain-specific.

It's also noteworthy that people without a college education were the most likely to shell out for brand-name products, although the study didn't draw conclusions on that point.

The takeaway is simple: Those who know best tend to bypass the brand names for a likely less expensive alternative — so we, the "average consumers," might be wise to do the same.

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Libby Kane was a personal finance expert who has reported and edited stories about money for more than 10 years. She previously held the Certified Financial Education Instructor (CFEI) certification issued by the National Financial Educators Council.Experience She has written and edited articles on everything from investing tips to model budgets and has interviewed dozens of authors, financial planners, and early retirees to share their advice, experiences, and insights with a global audience. Before joining Business Insider in 2014, she was an associate editor at LearnVest, a personal finance site to help women learn about money. Her work has appeared on sites such as MSN, AOL, Forbes, Slate, and The Street.Her team at Business Insider has tackled projects including:• Women of Means, a series about women taking control of their finances• Inside the Racial Wealth Gap, an exploration of the causes, effects, and potential solutions of the racial wealth gap in the US (finalist, Drum Award, "Editorial Campaign of the Year," 2021)• Strings Attached, a series of essays from people who have left insulated communities and how that journey affected their relationship with money• Master Your Money, a year-long guide for millennials on how to take control of their finances  (first runner up, Drum Award, "Best Use of Social Media," 2022)• The Road to Home, a comprehensive guide to buying your first house (silver award winner, National Association of Real Estate Editors, "Best Multi-Platform Package or Series – Real Estate," 2022)Libby believes in one universal truth about money: Advice is never for everyone. The best strategies, tools, and products depend on your preferences, financial situation, history with money, and goals.ExpertiseHer expertise includes:• Behavioral finance• Early retirement• Budgeting• Saving moneyEducationLibby holds a bachelor's degree from Wellesley College.Outside of personal finance, Libby enjoys reading, baking, and walking her dog.