Marketers often talk about value as if it were a fixed property of a product, something consumers either recognize or fail to recognize. Academic research suggests a more complicated reality. People rarely evaluate a product in isolation. They evaluate it against what they just saw, what else is available, what price they expected, which options appear nearby, and what standard of comparison the market environment quietly establishes.

That basic insight runs through several important streams of research in behavioral economics, consumer psychology, and marketing science: reference dependence, contrast effects, assortment context, price context, and comparative judgment. Taken together, they help explain why the same product can feel like a bargain, a rip-off, a premium indulgence, or an unremarkable middle option, depending on what surrounds it.

For advertising and marketing professionals, the implication is not simply that “context matters.” It is that value perception is often constructed in the moment of choice. The surrounding frame can influence willingness to pay, perceived quality, purchase likelihood, and even what consumers think a product is for.

## Why value is relative, not absolute

A foundational starting point is Daniel Kahneman and Amos Tversky’s [prospect theory](https://doi.org/10.2307/1914185), published in *Econometrica* in 1979. Their work was not about retail merchandising in the narrow sense, but it transformed how researchers think about economic judgment. Prospect theory argued that people evaluate outcomes relative to a reference point rather than in absolute terms, and that losses loom larger than gains.

This idea of reference dependence has had wide influence in marketing. A price is not merely a number. It is judged relative to an expected price, a prior price, a competitor’s price, a list price, or some internal standard shaped by previous experience. Likewise, a product’s quality or attractiveness is often judged against the alternatives available at the time of choice.

Kahneman and Tversky’s original work relied on experimental choice problems rather than real shopping data, so it does not directly show how consumers behave in stores or on ecommerce platforms. But it established the theoretical architecture for later marketing research that does.

One reason this matters commercially is that consumers usually do not carry around stable, fully formed valuations for most products. Instead, preferences are often constructed through comparison. That is one reason identical offerings can perform differently when placed in different lineups, price ladders, or promotional frames.

## Comparative judgment and the power of the immediate set

One of the clearest demonstrations that preferences depend on context comes from research on “preference reversals” and contingent valuation by Amos Tversky, Itamar Simonson, and others. In a widely cited article in the *Journal of Marketing Research*, Simonson and Tversky examined how the composition of a choice set can change which option people prefer, even when the focal options themselves do not change.

A particularly influential phenomenon is the compromise effect. In a classic *Journal of Consumer Research* article, Itamar Simonson (1989) showed that consumers are often more likely to choose an option when it appears as a middle alternative between a cheaper, lower-quality option and a more expensive, higher-quality one. The “middle” option can feel safer and more justifiable because it avoids the extremes. That makes its appeal partly a function of the assortment in which it appears, not just its standalone merits.

This work helped formalize a broader point: choice shares can shift when a new option is added, even if the new option is rarely selected. Such findings challenged simple rational-choice models that assumed stable preferences independent of context.

Subsequent research by Joel Huber, John Payne, and Christopher Puto, especially their well-known 1982 paper on adding asymmetrically dominated alternatives in *Journal of Consumer Research*, documented what practitioners often call the decoy effect. When a new option is introduced that is clearly inferior to one target option but not to another, the target can become more attractive. The inferior option works as a comparison point that clarifies the target’s relative value.

This is one of the most professionally relevant findings in consumer research because it shows that an option can change the meaning of another option without being chosen itself. A high-priced premium version, a stripped-down basic version, or a conspicuously worse alternative can all alter how consumers interpret the focal offer.

That said, the research record also calls for restraint. Context effects are real, but not infinitely powerful. Their size varies by category, consumer expertise, decision stakes, and presentation format. Some replication work and later studies suggest that effects can weaken when consumers have strong preexisting preferences or when choice environments are more transparent and familiar. Professionals should view these as robust tendencies, not universal laws.

## Price context and internal reference prices

If assortment context shapes quality and preference judgments, price context shapes whether an offer feels fair or attractive.

A major stream of marketing research has explored internal and external reference prices. Internal reference prices are the standards consumers bring with them, based on memory and past experience. External reference prices are cues presented in the environment, such as “regularly $99, now $69,” nearby alternatives, or category-wide price architecture.

A useful overview comes from research by Monroe and later by Thomas Lichtenstein, Scot Burton, and Richard Netemeyer, who studied how consumers use price to infer both sacrifice and quality. In a review article in the *Journal of Marketing Research*, Lichtenstein, Ridgway, and Netemeyer (1993) examined dimensions of price perception, including prestige sensitivity, value consciousness, and price-quality schema. Their work underscored that consumers do not respond to price in one uniform way. The same number can signal expense, quality, fairness, or value depending on the consumer and the context.

Another important contribution comes from Rajendran and Tellis (1994) in the *Journal of Marketing*, who studied how reference prices are formed and updated. Their findings suggested that consumers’ internal reference prices are shaped by observed prices over time, but not in a simple mechanical way. Recent prices, promotional patterns, and category experience matter. This helps explain why repeated discounting can reset consumer expectations and make full price harder to sustain.

This line of work is especially relevant in digital commerce, where consumers encounter comparison grids, strike-through prices, subscription tiers, and algorithmically personalized recommendations in rapid sequence. What looks like a price point from the firm’s perspective may function as a relational signal from the consumer’s perspective.

Importantly, reference price research does not imply that any claimed comparison price will work. External reference prices are more persuasive when they appear credible, specific, and normatively appropriate. Dubious “was” prices or perpetual discounting can erode trust, invite regulatory scrutiny, and reduce the very diagnostic value marketers hope to create.

## Contrast effects and perception itself

Some of the most striking evidence on relative judgment comes from psychology research showing that people’s evaluations shift because of immediate contrasts. These effects are not limited to price. They influence judgments of attractiveness, quality, size, fairness, and expected performance.

A classic review by Timothy D. Wilson and Daniel T. Gilbert, along with related work on evaluability and judgment, helps explain why some attributes become more or less salient depending on what they are compared against. More specifically in decision research, Christopher Hsee’s evaluability hypothesis, developed in the 1990s and published in outlets including *Organizational Behavior and Human Decision Processes*, found that consumers may value an attribute differently when evaluating options separately versus jointly.

For example, a product attribute that is hard to evaluate on its own may become highly influential when a comparison makes its superiority obvious. Conversely, an attribute that sounds impressive in isolation may lose force when shown next to a clearly better benchmark. This matters in advertising because product claims are rarely processed abstractly. Their persuasive force depends on whether consumers have a basis for interpretation.

Hsee’s work was often based on controlled experiments rather than market-level sales outcomes, which is a limitation if one wants direct estimates of business impact. But the studies are highly relevant to message design because they show that comparative context can determine which features consumers can meaningfully value.

For marketers, this helps explain why technical specifications, service guarantees, sustainability claims, and feature bundles do not speak for themselves. They gain meaning through contrast. “More durable,” “faster,” or “better ingredients” can be weak claims when consumers lack a comparison standard, but much more persuasive when contextualized appropriately and truthfully.

## Assortment context can change category meaning

Context does more than make an option seem expensive or inexpensive. It can change what consumers think the product is, what role it serves, and what standards should be used to judge it.

Research by Ravi Dhar and Itamar Simonson in the *Journal of Marketing Research* and related publications examined how choice context affects preferences for variety, compromise options, and the goals activated during decision-making. Their work showed that preferences are often shaped by the structure of the choice problem itself. Consumers may infer from the offered set what kind of decision they are supposed to be making: economy versus indulgence, functionality versus status, routine purchase versus special occasion.

This inference process is especially visible in line architecture. A product that sits at the top of a sparse lineup can be read as premium. The same product in a luxury-heavy assortment may feel merely standard. Likewise, a healthy snack placed among indulgent desserts may be judged as austere, while the same snack in a wellness-focused set may appear mainstream and appealing.

An adjacent body of research on categorization and schema-based judgment supports this interpretation. Consumers use surrounding cues to infer what category they are in and which evaluative criteria apply. That is why assortment decisions are also communication decisions. The lineup does not merely present options. It suggests norms.

This point has become more salient as retailers and platforms increasingly control the