Framing Effect

The framing effect is the tendency for people to make different choices when the same information is presented in different ways. Describing an outcome as a gain or a loss, as a percentage or a count, or as a discount or a surcharge can change decisions even when the facts and the final result are identical. Standard economic theory assumes such "invariance": a rational person's choice should not depend on wording. The framing effect shows that in practice it often does.

The term comes from the psychologists Amos Tversky and Daniel Kahneman, whose 1981 paper "The Framing of Decisions and the Psychology of Choice" in Science became a founding text of behavioral economics. Framing is closely tied to loss aversion and the prospect theory that explains it, and it underpins much of the modern debate on "choice architecture", disclosure rules and consumer protection in finance.

Think of a glass that is described as half full or half empty. The water level is the same, yet the two phrases leave different impressions. The framing effect is that idea applied to decisions: the picture painted around a choice nudges people one way or the other.

A shop that says "save 10% when you pay in cash" and a shop that says "10% extra when you pay by card" may end up charging exactly the same prices. Customers, though, often feel the first is a pleasant reward and the second an unfair penalty. Because feelings about gains and losses differ, the label can change which option people pick, how much they spend, and whether they think a deal is fair.

In their best-known study, Tversky and Kahneman asked people to choose between two public-health programs for an outbreak expected to kill 600 people. One version described outcomes in terms of lives saved; the other described the same outcomes in terms of deaths. When options were framed as lives saved, most respondents chose the certain option. When the same numbers were framed as deaths, most switched to the risky option. The probabilities never changed; only the wording did.

Later research separated three main kinds of framing:

• Risky-choice framing. The same gamble is presented as a gain or a loss, which shifts people between caution and risk-taking, as in the outbreak study.
• Attribute framing. A single feature is described positively or negatively, such as a medical treatment with a "90% survival rate" versus a "10% mortality rate"; positive frames are usually rated more favorably.
• Goal framing. A message stresses what is gained by acting or what is lost by not acting; loss-framed messages are often, though not always, more persuasive.

Framing is visible across money and markets:

• Surcharges and discounts. Card networks and merchants have long argued over whether a price difference should be presented as a cash discount or a card surcharge. In the European Union, the revised Payment Services Directive (PSD2) banned card surcharging on most consumer payments from January 2018, and the United Kingdom introduced a similar ban the same year; in the United States, surcharge rules vary by state and network.
• Interest rates and fees. A loan can be shown as a monthly installment, an annual rate or a total cost. Laws such as the US Truth in Lending Act (1968) and the EU Consumer Credit Directive require a standard annual percentage rate so that borrowers compare like with like. Showing only monthly payments tends to make expensive credit look cheaper.
• "Junk fees" and drip pricing. Prices that reveal mandatory fees only at checkout frame the headline price as lower than the real one. The US Federal Trade Commission adopted a rule in December 2024 requiring all-in pricing for live-event tickets and short-term lodging, effective in May 2025.
• Investment returns. Mutual funds can show returns over the period that looks best, or as cumulative rather than annual figures. Regulators such as the Securities and Exchange Commission (SEC) and the Financial Conduct Authority (FCA) set standards for how performance and risk must be presented.
• Pensions. Making enrollment the default rather than an opt-in frames saving as the normal choice; UK workplace auto-enrolment and US automatic 401(k) enrollment are prominent examples.

In monetary economics, the idea that people think in nominal rather than real terms, known as money illusion, is a related framing problem: a 2% pay rise with 4% inflation can feel better than a 2% pay cut with no inflation, even though in real terms the two leave the worker almost equally worse off.

Several mechanisms are proposed. Prospect theory says people judge outcomes against a reference point, and the frame sets that point; once it is set, losses loom larger than gains. The theory of bounded rationality suggests that people rarely translate every description into a common format, so they accept the frame they are given. Framing also links to the endowment effect (the status quo acts as a frame) and to risk aversion, which can flip into risk-seeking when choices are framed as losses.

The effect is not universal. Studies find it smaller when people are experienced, numerate or shown both frames side by side, and in game theory experiments relabelling identical payoffs has changed how cooperatively people play. Some economists argue that a frame can carry real information, for instance a default may signal what an employer recommends, so responding to it is not always irrational. Critics of policy uses of framing, from both free-market and civil-liberties perspectives, warn that governments and firms can use the same techniques to manipulate as well as to help. Supporters reply that every choice must be presented somehow, so there is no neutral frame and the question is only which frame to choose.

Framing also matters for how markets digest news, a topic studied alongside the efficient market hypothesis, and for public debates about trade and tax, where presenting a tariff as protection for workers or as a tax on consumers changes how voters react.

• Nobel Prize in Economic Sciences 2002
• Stanford Encyclopedia of Philosophy: Decision Theory