How to Negotiate a Price: The Car Dealer Trick That Makes You Apologize
A woman signs the contract for a new car. The trade-in value of her old car has just dropped below what she’d originally been promised. And yet, she is the one who ends up apologizing to the salesman.
Robert Cialdini witnessed that scene in person. To write Influence: The Psychology of Persuasion, the psychologist went undercover as a trainee salesman at a Chevrolet dealership, aiming to document from the inside one of the most effective (and most uncomfortable) negotiation tactics ever studied: the “lowball,” or bait price.
How the bait works
The mechanism is simple to describe and hard to spot while it’s happening.
A salesman offers especially favorable terms (a low price, a generous trade-in value for the used car being handed over in exchange) that convince the customer to decide to buy.
Only afterward, once the customer is already mentally committed to that purchase, sometimes just minutes before signing, someone withdraws part of that advantage: “the price I quoted you wasn’t authorized by management,” or “your trade-in was appraised 400 dollars too high, according to the used-car manager.”
Cialdini describes the case of a buyer who had been offered a strikingly generous trade-in value for her old car. With the contract already on the table, the used-car sales manager “corrected” that figure downward, claiming it had been too optimistic.
The buyer accepted the reduction without argument, convinced the new figure was the fair one, and even apologized to the salesman for having nearly taken advantage of his initial generosity.
The salesman, Cialdini writes, “looked hurt but managed a forgiving smile.”
The 7 a.m. experiment
Before the book, Cialdini had already measured the effect in the lab. In the study by Cialdini, Cacioppo, Bassett, and Miller (1978), college students were asked to take part in an experiment. One group was told from the outset that the session started at 7 in the morning; the other was told only after they had said yes.
With the time known up front, 31% agreed. With the time revealed after agreeing, 56% did, and almost all of them kept their word: on the day of the appointment, 53% of the lowball group showed up, compared with 24% of the group informed from the start. The cost was the same; only the moment it became known changed.
A later meta-analysis by Burger and Caputo (2015) concluded that the procedure reliably increases compliance across published studies.
Why we don’t cancel the purchase once its original reason disappears
The obvious question is why nobody just walks away when the reason that made them decide disappears.
Cialdini explains it through a mechanism of internal consistency: the moment we make a decision, we automatically start generating additional reasons to justify it to ourselves, reasons that go beyond the original motive.
Once that original motive is withdrawn, those new reasons are already enough to sustain the decision on their own, even though the deal is no longer the one we actually agreed to at the start.
Cialdini identifies a second variant, “even more insidious” in his own words: first inflate the trade-in value of the buyer’s used car, then correct it “to its actual, blue-book level” right before signing.
The buyer recognizes that the corrected figure is indeed fairer than the inflated one, and accepts it convinced they’re being reasonable, without noticing that the relevant comparison was never the inflated offer, but what they would have accepted if that figure had been on the table from the beginning.
The same logic outside a dealership
The “lowball” doesn’t need cars or showrooms. It shows up in any price negotiation where an initial advantage (a discount, a deadline, a special condition) is offered early to tip the decision, then withdrawn or reduced once the other party is already psychologically committed to closing the deal.
The more time and effort already invested in the negotiation by the time the “adjustment” arrives, the harder it is to recognize it for what it is.
Cialdini doesn’t offer a magic antidote, but he does offer a useful question to ask in the moment: if these exact terms, as they stand right now, had been put on the table from the first minute, would you still accept the deal?
Comparing the final offer to that hypothetical version (instead of comparing it to the initial, already-withdrawn offer) is the only thing that breaks the bait effect.
Recognizing this dynamic is also part of identifying your own profile when facing disagreement, something you can explore with our negotiation style quiz, especially if you recognize yourself in a more accommodating negotiator profile that gives ground to avoid the discomfort of reopening a figure already accepted.
Sources
- Cialdini, R. B. (1984; revised ed., 1993). Influence: The Psychology of Persuasion. William Morrow. Chapter 3, “Commitment and Consistency.”
- Burger, J. M. and Caputo, D. (2015). The low-ball compliance procedure: A meta-analysis. Social Influence, 10(4), 214-220. https://doi.org/10.1080/15534510.2015.1049203
- Cialdini, R. B., Cacioppo, J. T., Bassett, R. and Miller, J. A. (1978). Low-ball procedure for producing compliance: Commitment then cost. Journal of Personality and Social Psychology, 36(5), 463-476. https://doi.org/10.1037/0022-3514.36.5.463
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Frequently asked questions
What is the 'lowball' technique in a negotiation?
It means offering an attractive advantage that leads the other person to decide to close a deal, then withdrawing that advantage afterward, once psychological commitment to the decision has already formed. Robert Cialdini documented the technique while working undercover as a car salesman.
Why do people accept the deal even after the advantage that motivated it disappears?
Because, according to Cialdini, making a decision automatically generates new internal reasons to justify it, reasons that go beyond the original motive. Once that original motive is withdrawn, those new reasons are already enough to sustain the decision on their own.
Are there different ways to apply this technique when negotiating a price?
Yes. Cialdini describes at least two: reducing the initial discount right before signing, claiming it 'wasn't authorized,' or first inflating the trade-in value of what the other party gives in exchange (like a used car), then correcting it downward once they've already decided to buy.
How can you protect yourself from this technique when negotiating any price?
Cialdini suggests recognizing the tactic in the moment and asking the original question again: if this exact offer, on these exact terms, had been presented from the very start, would you have accepted it anyway? If the answer is no, the commitment you feel shouldn't be enough to keep you in the deal.
