Daniel Kahneman
System 1 decides, System 2 rationalizes — the psychology every pricing page quietly runs on.
- Name
- Daniel Kahneman
- Lived
- 1934-2024
- Nobel
- Economic Sciences, 2002
- Key work
- Thinking, Fast and Slow (2011)
Forms & parts of speech
Who he was, in plain terms
Daniel Kahneman was the psychologist who, with Amos Tversky, dismantled the rational-actor model of economics from inside its own journals. Their prospect theory (1979) earned him the 2002 Nobel in Economic Sciences — the first for a psychologist — and Thinking, Fast and Slow (2011) carried the work to every airport bookshop and marketing meeting on earth.
The key ideas
Two systems — fast, automatic, associative System 1 and slow, effortful System 2 — with System 1 running most decisions including purchases. Prospect theory's core findings: losses hurt roughly twice as much as equivalent gains (loss aversion), people evaluate against reference points rather than absolutes, and framing the same fact differently changes the choice. Add anchoring — the first number seen drags every later estimate toward it — and you have the working physics of pricing pages.
Why he still matters
Free-trial endowment, decoy pricing tiers, "save $40" versus "pay $40 more," defaults that stick — all are applications of his findings. He also supplied the field's conscience late in life, warning that the replication crisis weakened some priming research he had cited. The robust core — loss aversion, reference dependence, anchoring, the two systems — has held.
Synonyms & antonyms
Synonyms
Origin & history
Born 1934 in Tel Aviv, raised in occupied Paris; psychology at Hebrew University, PhD Berkeley (1961). The Tversky collaboration began in 1969 in Jerusalem; "Prospect Theory: An Analysis of Decision under Risk" appeared in Econometrica in 1979. Died March 2024.
Etymology: source.
Usage trends
Search interest for this term over the last five years:
Common questions
- Who was Daniel Kahneman?
- Israeli-American psychologist (1934-2024) who won the 2002 Nobel in Economics for prospect theory, developed with Amos Tversky.
- What is Kahneman known for?
- Thinking, Fast and Slow, the System 1/System 2 model, loss aversion, anchoring, and framing effects.
- Why does Kahneman matter to marketers?
- Pricing, framing, defaults, and trial design all run on his findings about how people actually choose — fast, reference-based, loss-averse.
Related tools & calculators
Resources & people to follow
- bookThinking, Fast and Slow — Daniel Kahneman
- paper"Prospect Theory" — Kahneman & Tversky, Econometrica 1979
- referenceNobelPrize.org — 2002 laureate page
Curated, non-competitor resources verified per term.
Related training
- moduleCRO & experimentation
Disciplines
Areas of marketing where daniel kahneman is a core concern: