Counter-intuitively, asking someone for a small favour can make them more favourably disposed towards you: having done you a favour, they rationalise their gesture by convincing themselves that they like you. Requesting a little help, rather than offering it, can therefore build rapport.
Grounding in the source schoolSchool grounded in experimental research
Indicative profile: it situates the “Psychological influence” family as the Cognitive science school practises it, not this technique taken in isolation. Techniques from the same family and school therefore share the same profile. NEGOCOACH editorial rating out of 10, non-experimental · the higher the “relational risk” value, the more costly the technique is to the relationship.
NEGOCOACH assessment
How to read this rating
Tactical potential 8.3/10 (effectiveness, impact, discretion) and vigilance high (relational and ethical risk): two distinct readings, deliberately never merged into a single score that would reward risk. NEGOCOACH editorial rating calibrated from the “Psychological influence” family and the “Cognitive science” school. Each criterion is rated out of 10; click to understand what it measures.
Effectiveness8/10 · Very high
How far the technique can carry the negotiation in the intended direction when it is well executed.
Psychological impact10/10 · Very high
Strength of the effect produced on the counterpart's perceptions, emotions and decisions.
Discretion7/10 · High
How hard it is for the other party to notice the technique is being used. A high value = very discreet.
Preparation6/10 · High
The information, analysis and rehearsal required upfront to use it effectively.
Relational risk5/10 · Moderate
Potential cost to the relationship and to trust if the technique is spotted, refused or fails. A high value = riskier.
Ethics4/10 · Moderate
Moral acceptability: fairness, transparency and respect for the counterpart's autonomy. A high value = more defensible.
Level of evidence
School grounded in experimental research
The school this technique stems from is grounded in replicated, peer-reviewed experimental work. This indicator qualifies the school, not the experimental validation of this technique taken in isolation.
Indicative NEGOCOACH editorial rating, for teaching purposes. For “Relational risk”, a high value signals a cost to the relationship, not a quality.
Summary of the BENJAMIN FRANKLIN EFFECT
Origin & history
The effect takes its name from an anecdote recounted by Benjamin Franklin in his autobiography: to win over a political rival, he asked to borrow a rare book from him. The rival, flattered, obliged, and thereafter became a devoted friend. Franklin drew a maxim from this: “he that has once done you a kindness will be more ready to do you another than he whom you yourself have obliged.” Modern psychology has confirmed the phenomenon through Leon Festinger's theory of cognitive dissonance (1957): we adjust our feelings to stay consistent with our actions.
Definition and principle
The technique consists in requesting a small commitment or favour from the other party, which leads them to justify their gesture through a positive attitude towards you. The act precedes and shapes the feeling, not the other way round.
Concrete examples of application
Application by context
The same technique, across several negotiation settings
A salesperson asks a prospect for their expert opinion on a point: flattered to be consulted and committed by their answer, the prospect becomes more cooperative.
Context 2 / 6
Labour negotiation
A negotiator asks the opposing party to help them understand a technical point, creating the beginnings of collaboration.
Context 3 / 6
Crisis management
The mediator asks the person for a small gesture (“could you help me to…?”), which sparks a bond and a cooperative posture.
Context 4 / 6
Political negotiation
A leader asks an opponent for advice on a subject, drawing them closer through the commitment thereby created.
Context 5 / 6
Real-estate negotiation
A buyer asks the seller to tell them the history of the house; drawn in, the seller develops a warmer relationship.
Context 6 / 6
Family negotiation
In a dispute, asking the other party for a small concrete favour re-establishes a relational bridge.
Counter-techniques
Spot and neutralise this technique
Negotiation is also played on defence. Here is how to recognise this technique when it is used against you, and turn it around.
Detect
The signals that give it away
Heavy flattery
Appeals to guilt or fear
Creating a moral debt
Neutralise
The counters that defuse it
Separate the emotion from the substance
Defer your answer
Come back to facts and figures
Turn around
Turn it into an advantage
Verbalise the lever: "I feel you're playing on guilt", and naming it defuses it.
The trap to avoid
Mistaking an emotional bond for an objective argument.
Strengths and weaknesses
The Franklin effect creates sympathy at little cost and inverts the logic of giving. Its limits: the favour requested must remain small and legitimate, otherwise it irritates; repeated or self-serving, it becomes counter-productive and can be seen as manipulation.
When should this technique be used?
Useful for initiating a relationship or warming up a strained bond, through a modest and sincere request. To be avoided when the other party is already overloaded or wary.
Objectives of the technique
Turn an adversary or a cold contact into an ally by getting them to do you a small favour, which unconsciously prompts them to justify it by liking you more
Create commitment and psychological reciprocity in the other party without offering a costly concession
Reduce an interlocutor's hostility by having them invest a minor effort on your behalf (an opinion, advice, the loan of a document)
Strengthen a lasting relationship by giving the other party the chance to feel generous and competent towards you
Unblock a stalled negotiation by soliciting the other party's expertise or help rather than granting them an advantage
Famous cases
Political · Franklin and the rival in the Pennsylvania Assembly: In his autobiography, Benjamin Franklin recounts how he won over an influential and hostile member of the Pennsylvania Assembly. Rather than doing him a favour to soften him up, Franklin asked to borrow a rare book from his library. The rival agreed, and Franklin returned it a week later with warm thanks. From then on, the man showed himself courteous and helpful, and the two became friends until his death. Franklin drew a maxim from this: he who has already done you a favour will be more disposed to do you another than the one to whom you have done one.
Sales · Soliciting the opinion of a reluctant client: A representative scenario: a salesperson faces a distant, sceptical buyer. Instead of piling on commercial gifts, they ask for a small favour: “You know your sector perfectly - would you be willing to read through this proposal and tell me what, in your view, might not fit your constraints?” By investing time to help the seller improve their offer, the buyer becomes involved, feels expert and valued, and develops a sympathy that warms the relationship and eases the rest of the negotiation.
Common mistakes
Asking for a favour that is too costly or too soon: the effect only works with a light request that is easy to accept; a heavy demand triggers rejection instead of sympathy
Confusing the effect with mere flattery: it is not the compliment that operates, but the real effort the other party has agreed to make on your behalf
Forgetting to give sincere thanks: without acknowledgement, the other party cannot rationalise their gesture positively and the effect fades
Repeating the manoeuvre in a transparent and instrumental way: if the interlocutor perceives the manipulation, the dissonance turns into mistrust
Believing that it is you who must do a favour in order to be liked: the Franklin effect is counter-intuitive - it is the fact of RECEIVING a favour from the other party that creates the attachment
Limits and ethics
The effect has something disarming about it: the person who does you a favour ends up genuinely liking you, by rationalising their gesture. No one is harmed, no information is distorted, and the bond created is real. That is what makes it an interesting borderline case rather than ordinary manipulation. The reservation concerns the origin of the bond. Asking for a favour because you need it, and accepting the debt that goes with it, is a normal relationship between people who work together. Manufacturing a favour you have no use for, for the sole purpose of triggering in the other party the mechanism that will make them like you, is obtaining affection through a lever of dissonance rather than through who you are; the attachment is authentic, its cause is not. A practical limit bounds its use: the effect only operates on a small favour freely given. A demand that is too heavy, or addressed to someone who cannot refuse, produces no sympathy - it produces a burden and resentment. Asking for a favour you need creates a bond; manufacturing one to install the bond means getting yourself liked through a mechanism.
Scientific foundations
Jecker, J. & Landy, D. (1969) Liking a person as a function of doing him a favor Human Relations, 22(4), 371-378
Cialdini, R. B. (2006) Influence: The Psychology of Persuasion (Revised Edition) Harper Business
Festinger, L. (1957) A Theory of Cognitive Dissonance Stanford University Press
Quick exercise
Test yourself before answering
Answer in your head, then reveal the solution. Memory is built through active recall.
1Quels signaux doivent vous alerter ?
Heavy flattery
Appeals to guilt or fear
Creating a moral debt
2Quelles parades appliquer ?
Separate the emotion from the substance
Defer your answer
Come back to facts and figures
Frequently asked questions
The questions we get most
What is the "The Benjamin Franklin Effect Technique" technique?
Counter-intuitively, asking someone for a small favour can make them more favourably disposed towards you: having done you a favour, they rationalise their gesture by convincing themselves that they like you. Requesting a little help, rather than offering it, can therefore build rapport.
Is the "The Benjamin Franklin Effect Technique" technique ethical?
It sits on the line: effective, but it can tip into manipulation if it exploits an information asymmetry. Use it with measure and without deliberate deceit.
How do you defend against "The Benjamin Franklin Effect Technique"?
Mistaking an emotional bond for an objective argument. The right reflex: separate the emotion from the substance.
What is the "The Benjamin Franklin Effect Technique" technique based on?
NEGOCOACH does not assess the experimental validation of this technique in isolation. What we document is the grounding of its source school (Cognitive science): school grounded in experimental research. Full detail is in the "At a glance" section of this page.
Practise with AI
Three ready-to-use prompts
Copy, paste into your assistant, replace the [brackets]. Works with ChatGPT, Claude, Gemini, Mistral, Perplexity.
Prepare
Build your plan before the meeting
You are an expert negotiation coach. Help me prepare to use the "The Benjamin Franklin Effect Technique" technique in the following situation: [describe your situation]. Give me: the conditions for success, a 3-step script, my counterpart's likely objections and how to answer them.
Play the role of my counterpart in a negotiation. I am going to test the "The Benjamin Franklin Effect Technique" technique. React realistically and with resistance, do not give in too quickly, then at the end analyse my performance and suggest 3 concrete improvements.
Here is how my negotiation went: [paste the exchanges]. Analyse whether the "The Benjamin Franklin Effect Technique" technique was used well, what worked, the mistakes made, and spell out precisely what I could have done better.
Founding works of the 🧠 Cognitive science school this technique belongs to.
Influence, The Psychology of Persuasion
Book
R. Cialdini · 1984
The founding work on the mechanisms of persuasion: six universal principles (reciprocity, consistency, social proof, authority, liking, scarcity) illustrated with striking experiments. A landmark in social psychology.
Thinking, Fast and Slow
Book
D. Kahneman · 2011
The sum of Kahneman's work on decision-making: two systems of thought, one fast and intuitive, the other slow and analytical, and the long list of biases that distort our judgements. Essential to understanding others... and yourself.
Nudge
Book
R. Thaler & C. Sunstein · 2008
How to steer choices without constraint, by acting on the "choice architecture". The book popularised the nudge and behavioural economics applied to public policy as much as to management.
Judgment under Uncertainty: Heuristics and Biases (Science)
Article
A. Tversky & D. Kahneman · 1974
The founding paper (Science, 1974) that uncovered the heuristics and biases of judgement, including anchoring. The starting point of the behavioural-economics revolution.
R. Cialdini ("Influence", 1984), D. Kahneman & A. Tversky, R. Thaler, D. Ariely.
The author
Author
On video
See the technique in action
Videos to picture The Benjamin Franklin Effect Technique and anchor it through examples.
Counter-intuitively, asking someone for a small favour can make them more favourably disposed towards you: having done you a favour, they rationalise their gesture by convincing themselves that they like you. Requesting a little help, rather than offering it, can therefore build rapport.
The right reflex
Verbalise the lever: "I feel you're playing on guilt", and naming it defuses it.
Never do this
Mistaking an emotional bond for an objective argument.
8.3/10 tactical potential High vigilance School grounded in experimental research
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