# Influencing Behavior & Persuasion

These models help you ethically influence customer decisions.

## Reciprocity Principle
People feel obligated to return favors. Give first, and people want to give back.

**Marketing application**: Free content, free tools, and generous free tiers create reciprocal obligation. Give value before asking for anything.

## Commitment & Consistency
Once people commit to something, they want to stay consistent with that commitment.

**Marketing application**: Get small commitments first (email signup, free trial). People who've taken one step are more likely to take the next.

## Authority Bias
People defer to experts and authority figures. Credentials and expertise create trust.

**Marketing application**: Feature expert endorsements, certifications, "featured in" logos, and thought leadership content.

## Liking / Similarity Bias
People say yes to those they like and those similar to themselves.

**Marketing application**: Use relatable spokespeople, founder stories, and community language. "Built by marketers for marketers" signals similarity.

## Unity Principle
Shared identity drives influence. "One of us" is powerful.

**Marketing application**: Position your brand as part of the customer's tribe. Use insider language and shared values.

## Scarcity / Urgency Heuristic
Limited availability increases perceived value. Scarcity signals desirability.

**Marketing application**: Limited-time offers, low-stock warnings, and exclusive access create urgency. Only use when genuine.

## Foot-in-the-Door Technique
Start with a small request, then escalate. Compliance with small requests leads to compliance with larger ones.

**Marketing application**: Free trial → paid plan → annual plan → enterprise. Each step builds on the last.

## Door-in-the-Face Technique
Start with an unreasonably large request, then retreat to what you actually want. The contrast makes the second request seem reasonable.

**Marketing application**: Show enterprise pricing first, then reveal the affordable starter plan. The contrast makes it feel like a deal.

## Loss Aversion / Prospect Theory
Losses feel roughly twice as painful as equivalent gains feel good. People will work harder to avoid losing than to gain.

**Marketing application**: Frame in terms of what they'll lose by not acting. "Don't miss out" beats "You could gain."

## Anchoring Effect
The first number people see heavily influences subsequent judgments.

**Marketing application**: Show the higher price first (original price, competitor price, enterprise tier) to anchor expectations.

## Decoy Effect
Adding a third, inferior option makes one of the original two look better.

**Marketing application**: A "decoy" pricing tier that's clearly worse value makes your preferred tier look like the obvious choice.

## Framing Effect
How something is presented changes how it's perceived. Same facts, different frames.

**Marketing application**: "90% success rate" vs. "10% failure rate" are identical but feel different. Frame positively.

## Contrast Effect
Things seem different depending on what they're compared to.

**Marketing application**: Show the "before" state clearly. The contrast with your "after" makes improvements vivid.