Maryland has become the first state in the nation to outlaw “surveillance pricing” for groceries, stepping into a growing fight over whether corporations can use personal data and predictive technologies to determine how much individual consumers pay for basic necessities. With Gov. Wes Moore’s signing of the Protection from Predatory Pricing Act, the state has launched what could become a national test of whether lawmakers can meaningfully regulate a pricing system critics say is quietly spreading through the digital economy and into essential goods markets.
Supporters of the law have framed it as a landmark consumer protection measure at a time when Americans remain squeezed by food inflation and rising living costs. But the legislation also arrives amid warnings that the practice it targets may be far more entrenched, and potentially harder to police, than many consumers realize.
The issue centers on what advocates call surveillance pricing, the use of personal data such as browsing histories, purchasing behavior, geolocation, household characteristics, and inferred economic status to show different consumers different prices for the same products. Though dynamic pricing has long existed in sectors such as travel and ride-hailing, consumer advocates say a far more individualized and opaque version is emerging, powered by enormous volumes of behavioral data.
Moore pointed to how rapidly retail technology is changing as justification for intervention. “Digital price tags are replacing paper ones. It’s happening because we are having cameras that are watching aisles, it’s happening because we have apps that are moving from search-based to predictive,” Moore said.
Those concerns have increasingly focused on electronic shelf labels, which advocates warn could allow retailers to alter prices nearly instantaneously based on demand, weather, time of day, or other conditions. Critics fear that technology could bring a form of surge pricing into grocery aisles, where consumers have far less flexibility than in discretionary markets.
Concerns about the practice intensified after investigations cited by Moore and consumer advocates suggested personalized pricing may already be influencing what some shoppers pay. A December investigation by Consumer Reports and the Groundwork Collaborative found Instacart was conducting a “pricing experiment” that charged some customers as much as 23 percent more than others for the same goods, based on shoppers’ personal data. Another Consumer Reports investigation found Kroger was compiling detailed profiles of customers that included estimates of household size, education level, income, and even perceived loyalty to the company.
For advocates, those findings illustrate how surveillance infrastructure can be transformed into pricing power.
“Surveillance pricing can drive up the price of food,” said Grace Gedye, senior policy analyst at Consumer Reports. “Retailers have a lot of data about individual shoppers: how often we search for or hover over particular items, whether we live near competitor stores, inferences about our likes and dislikes, our dietary needs, our income, our family size, and more.”
That informational imbalance, Gedye argued, creates the potential for companies to extract not a market price, but a personalized maximum.
“Surveillance pricing,” she said, “allows companies to take advantage of that information asymmetry and charge you as much as they think you’re individually willing to pay.”
In a related interview included in the source material, Gedye described a digital ecosystem where companies can track search behavior, device location, shopping carts, and data purchased from third parties to infer not only preferences but vulnerability. “They can use it to change the price you see based on what they think you might be personally willing to pay.”
Supporters of Maryland’s legislation argue that is precisely what makes the issue distinct from traditional discounts or coupons. While student discounts or loyalty promotions are generally transparent, critics say surveillance pricing can be individualized, hidden, and often impossible for consumers to detect.
Beginning October 1, Maryland’s law will require grocery shelf prices to remain stable for a full business day and prohibit retailers and food delivery services from using surveillance data such as inferred income, ethnicity, neighborhood, family size, or purchasing history to raise prices for individuals. Companies that violate the law can face penalties of up to $10,000 for a first offense and $25,000 for repeat violations, after a 45-day period to correct problems.
The legislation has been celebrated as groundbreaking, but even some supporters have warned it leaves significant vulnerabilities.
“While it’s encouraging to see the Maryland Legislature take up this issue, this law has loopholes that will limit its real-world impact,” Gedye said.
Among the concerns raised by Consumer Reports is that the law does not establish a clear baseline price, potentially allowing discriminatory prices to be framed as discounts. Advocates have also warned exemptions for loyalty and subscription programs may provide companies with workarounds that preserve much of the personalized pricing structure the law seeks to curb.
Enforcement has become another major point of concern. Because only the Maryland attorney general can bring suits under the law, consumers themselves cannot directly sue over violations, a limitation critics say weakens accountability. Consumer advocates have argued those shortcomings partly reflect industry pressure after the Maryland Retailers Alliance opposed the bill before eventually withdrawing its resistance following amendments that, according to Consumer Reports, “undercut” the legislation’s strength.
That tension has made Maryland’s law appear both pioneering and incomplete. It may be the nation’s first direct attempt to regulate surveillance pricing in food markets, but advocates say it also demonstrates how corporate influence can narrow reforms even as they advance.
Gedye urged lawmakers in other states not to replicate those weaknesses. “We urge other state legislatures considering personalized pricing legislation to build in stronger consumer protections and avoid loopholes that weakened this bill.”
That warning comes as California, New York, and Illinois consider similar measures and federal lawmakers weigh broader action against surveillance and surge-pricing practices.
The growing attention reflects concern that algorithmic pricing may become a major new frontier in inequality. Critics argue that if companies can infer who comparison shops, who has limited alternatives, or who may pay more out of necessity, pricing systems may do more than respond to markets. They may exploit personal circumstances.
That is why this debate has expanded beyond privacy into a broader argument about affordability, fairness, and corporate power. At a time when consumers remain highly sensitive to food prices, advocates argue individualized algorithmic pricing could amount to a hidden layer of inflation operating shopper by shopper.
Maryland’s law attempts to place limits on that possibility. Whether it succeeds may depend on how aggressively it is enforced and whether its loopholes prove as significant as critics fear. But its broader significance may lie in shifting the debate itself.
For years, concerns over digital surveillance often focused on targeted advertising or privacy harms. This law reframes that discussion around whether surveillance can be used to determine the price of essentials. That makes the issue far harder to dismiss as abstract.
As other states consider whether to follow Maryland’s lead, the state’s experiment may become an early test of whether lawmakers can curb a pricing model critics say is already advancing faster than regulation. It may also reveal whether consumer protection law can keep pace as predictive technologies move from shaping what people buy to determining what they pay.
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