To Reduce US Gun Sales, Limit Access to Handguns
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To Reduce US Gun Sales, Limit Access to HandgunsIllustrations and data visualization by Giorgio Donghi/Aguaprint
Retailers have long set prices ending in 99 cents, knowing that buyers view $4.99, for example, as significantly less expensive than $5. But many companies underestimate consumers’ left-digit bias and should be using these prices more than they do now, according to research by Chicago Booth’s Avner Strulov-Shlain.
Strulov-Shlain analyzed price data from 1,710 popular products in 248 stores of a single US retailer, as well as data on 12 products carried by more than 60 chains and in 11,000 of their stores. He finds that one-quarter to one-third of all prices ended in 99 cents. To learn how much companies should charge, Strulov-Shlain built a model that combines previously established left-digit bias models with a profit-maximizing formula that takes left-digit bias into account. Using the model and retailers’ pricing data, he estimates what price sensitivity and left-digit bias the companies had in mind when setting prices. Many items would have been better priced with a 99-cent ending, because demand dropped when the dollar digit changed, he finds.
Retailers know that buyers see this 1-cent difference as significant
However, Strulov-Shlain finds:
Customers behaved as if the price difference were 15–25 cents.
15¢–25¢Companies reacted as if customers behaved like the price difference were 1.5–3 cents.
1.5¢–3¢Avner Strulov-Shlain, “More than a Penny’s Worth: Left Digit Bias and Firm Pricing,” Working paper, April 2019.
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