In my previous post I talked of two theories/ideas that are popular in marketing despite having a preponderance of evidence that they are inneffective or untrue:
- Group brainstorming or focus groups for idea generation
- Maslow’s Hierarchy of Needs
Several readers either posted or e-mailed suggested additions to the list (I did not vet their assertions):
You only use 10% of your brain. It seems the evidence for this claim came from an experimenter who slowly peeled brain material from a pigeon and looked for cognitive impairment(!)
Cost-cutting from preventative medicine. A friend in healthcare says that accept for a few conditions, evidence indicates that prevention costs money.
Product life-cycle. A marketing professor challenged me to find a study that predicts a life-cycle unless it is deliberately managed. If the model doesn’t predict it may be a tautology or even and ad-hoc justification for mismanagement.
Any thoughts on these or would you propose more???