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The one-cent gap between €9.99 and €10.00

The marketing question is whether the presentation changes how someone sees the offer: a bargain, a premium product, or almost the same price. Odd and round endings offer competing ideas about what a number can communicate beyond its amount.

3–7 min

Questions you could explore

  • When might a round price send the more useful signal?
  • What evidence would separate a price-ending effect from the product, discount, or setting?

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Psychology

Can an option nobody wants change what people choose?

Choosing between two offers can feel different when a third appears beside them. A decoy is less attractive than one option on the relevant features, but its presence does not reliably change every decision.

5–7 min
Psychology

When a question reshapes a memory

After a car crash or a crime, the way an investigator phrases a single question can change what a witness remembers seeing. Research on eyewitness reports separates what someone originally observed from information introduced afterward, making question wording a crucial part of the evidence problem.

3–7 min
The one-cent gap between €9.99 and €10.00 | Speech Topic | speaking.app