How First Impressions and Anchoring Bias Shape Every Decision
The anchoring bias is a powerful cognitive effect that influences how individuals evaluate information and make decisions. This phenomenon is rooted deeply in behavioural economics. It also has roots in psychology. It happens when people rely too much on the first piece of information they receive. This initial information serves as the “anchor” in their subsequent judgments or decisions.
What is the Anchoring Bias?
The anchoring bias is the tendency to use an initial reference point as a basis for decision-making. This point is often called an anchor. Once an anchor is set, individuals adjust from this baseline, even if the anchor is arbitrary or irrelevant.
If a shopper sees a t-shirt marked down from $100 to $50, they might think it’s a great deal. The shopper may perceive the $50 price as a great deal. This perception occurs even if the t-shirt’s actual value is far less than $50. The $100 serves as the anchor, shaping the perception of the “sale price.”
This bias can manifest in various domains, including consumer behaviour, salary negotiations, legal judgments, and medical diagnoses.
The Psychology Behind Anchoring Bias
The anchoring bias is thought to arise from two primary psychological processes:
- Cognitive Effort: Anchoring simplifies complex decision-making. The human brain tends to conserve cognitive resources by using shortcuts (heuristics). When faced with uncertainty, the anchor provides a starting point, reducing the mental load required for further evaluation.
- Adjustment Insufficiency: People fail to adequately adjust away from the anchor. Even when they recognise that the anchor might be arbitrary, adjustments are often insufficient. This happens because of unconscious biases and limited information processing.
Relationship with Other Cognitive Biases
The anchoring bias doesn’t exist in isolation. It interacts with other cognitive biases, compounding its effects:
- Confirmation Bias: People tend to seek out information that supports the anchor, reinforcing its validity.
- Framing Effect: How information is presented can influence the strength of the anchor. For instance, framing a discount as “50% off” rather than “$50 saved” can make the anchor more influential.
- Endowment Effect: Anchors can increase the perceived value of owned items. For example, setting a high initial price for a product can make sellers overvalue their items.
Empirical Evidence and Studies
Numerous studies have demonstrated the robustness of the anchoring bias:
- Tversky and Kahneman (1974): In their foundational study, participants spun a wheel. This wheel was labelled with arbitrary numbers (10 or 65). They were then asked to estimate the percentage of African nations in the United Nations. Participants who spun a higher number gave significantly higher estimates. This experiment highlighted how even irrelevant anchors could distort judgments.
- Northcraft and Neale (1987): This study showed how anchors influence real estate valuations. Participants, including experts and novices, assessed the value of a property. Their valuations were heavily influenced by the listing price, an irrelevant anchor.
- Englich et al. (2006): In a legal context, judges were found to rely on anchors when deciding sentencing lengths. The study revealed that even experienced professionals are not immune to this cognitive bias.
Limitations of the Anchoring Bias
While the anchoring bias is pervasive, there are limitations to its effects:
- Awareness and Expertise: People with deep expertise in a subject can counteract the anchoring effect. Those who are aware of this effect may also resist its influence. However, even experts are not entirely immune.
- Strength of the Anchor: The impact of an anchor depends on its plausibility. Implausible anchors are less likely to influence judgments.
- Context and Relevance: In situations where additional, compelling evidence is present, the influence of the anchor diminishes.
Practical Implications
Understanding the anchoring bias can be transformative for individuals and organizations:
- In Negotiations: Setting the first offer can establish an anchor that tilts the negotiation in your favour.
- In Marketing: Displaying a high initial price (e.g., “Was $500, now $300”) can create a perception of value.
- In Personal Finance: Being aware of anchoring can help individuals resist irrational spending triggered by discounts or comparative pricing.
The anchoring bias underscores how profoundly initial impressions and reference points shape our decisions. By recognizing and accounting for this bias, individuals and businesses can make more informed and rational choices.
How Brands Use Anchoring Bias in Advertising: Real-Life Examples
The anchoring bias is a favourite tool among marketers to shape consumer perceptions and drive behaviour. By presenting an initial “anchor” to frame decisions, brands effectively influence how customers value products or services. Below are detailed examples of advertising campaigns where anchoring bias played a pivotal role and insights into why it worked.
1. Amazon’s “List Price” Strategy
Amazon frequently uses anchoring bias in its product listings by showing a “List Price” alongside a discounted price (e.g., “List Price: $100, Now: $59.99”). The list price acts as an anchor. Even if the product is rarely sold at that rate, it makes the discounted price appear as a bargain.
Why It Works:
- Consumer Perception of Savings: The higher list price creates a perception of substantial savings. This perception remains even if the lower price is the norm.
- Impulse Buying: The anchor motivates consumers to act quickly to “capture the deal.”
2. Tesla’s “Premium Model” Anchor
When Tesla launched the Model S Plaid, it introduced the car as the fastest model in its lineup. It was also the most advanced. The Model S Plaid was priced significantly higher than other models. This high price anchors Tesla’s entire product line. It makes other models like the Model 3 or Model Y seem more reasonably priced.
Why It Works:
- Luxury Anchoring: The premium model reinforces Tesla’s status as a luxury and innovative brand.
- Relative Value: Other models benefit by seeming affordable in comparison to the Plaid.
3. Domino’s Pizza “Build Your Own Deal”
Domino’s Pizza offers a customizable meal deal, often starting with a higher base price for a combo (e.g., $25 for a pizza, sides, and drink). Customers can customize the deal. They can remove or add items. The initial anchor makes the base deal seem comprehensive. It also makes it appealing.
Why It Works:
- Perceived Control: The anchor makes customers feel like they are starting with a great offer, even if they remove items.
- Value Framing: Consumers perceive their choices as a way to maximize value, anchored by the initial deal.
4. IKEA’s Tiered Product Displays
In IKEA showrooms, furniture and household goods are displayed with multiple price points. A dining table set might include a premium option priced at $800. There is also a mid-range set at $500. Additionally, there is an entry-level set at $300. The premium option anchors the perceived value of the others, making the mid-tier set look like a great compromise.
Why It Works:
- Framing Options: Anchors guide customers to the mid-tier product, which often has the highest profit margin.
- Psychological Pricing: Consumers feel they are saving money while still choosing quality.
5. Software Pricing Pages (e.g., Adobe Creative Cloud)
Many SaaS companies, including Adobe, use tiered pricing plans. For instance, Adobe Creative Cloud offers individual plans, business plans, and all-apps bundles. The most expensive plan (e.g., $79.99/month) anchors customers’ perception of value, making mid-tier options like the “Photography Plan” (e.g., $9.99/month) appear highly affordable.
Why It Works:
- Value Anchoring: The higher price point establishes the perceived worth of the service.
- Behavioural Economics: Customers rationalize smaller, recurring expenses as savings relative to the premium option.
6. Coca-Cola’s “Small, Medium, Large” Pricing
Coca-Cola often uses price anchoring at movie theatres and fast-food restaurants. By offering three sizes—small, medium, and large—the large size sets the anchor for value. The medium size costs only slightly less than the large. It appears to offer better value for money. This leads many consumers to choose it.
Why It Works:
- Perceived Value: The price gap between medium and large is minimized to make medium more attractive.
- Upselling Tactics: Anchoring nudges consumers to spend slightly more than they originally intended.
7. Real Estate Listings
Real estate agents often use anchoring to influence buyers’ perceptions. For example, an open house might include several properties in the same area, starting with a high-priced home. The anchor influences buyers to perceive subsequent listings as better deals, even if they are still high-priced.
Why It Works:
- Expectation Framing: The first listing sets a benchmark for price and quality.
- Comparison Bias: Buyers make relative judgments rather than absolute evaluations.
By leveraging the anchoring bias, brands tap into fundamental decision-making processes to influence perception and drive consumer behaviour. These examples illustrate not only the effectiveness of this strategy but also the psychology behind its success.