Neuroscience in decision-making: how to avoid biases that affect your business?

Maví Pérez, PhD

Decision-making is part of the daily routine of any business. Choosing prices, hiring staff, launching new products, investing resources, or defining business strategies are actions we perform constantly. However, we rarely stop to think about how we make those decisions.

Neuroscience and cognitive psychology have shown that our brain uses automatic mechanisms to process information quickly. These mechanisms are useful because they allow us to act efficiently, but they can also lead us to make systematic errors known as cognitive biases.

Understanding how our mind works can help us make more conscious decisions, reduce risks, and strengthen the management of our businesses.

The two systems the brain uses to decide

Psychologist and Nobel laureate in Economics Daniel Kahneman explained that people use two systems of thinking:

System 1: Fast and intuitive

It is automatic, fast, and requires little mental effort. It helps us solve everyday situations without needing to analyze every detail.

For example, when we travel a familiar route or perform a routine task, the brain works on “autopilot.”

System 2: Slow and Analytical

This is the system that activates when we face new problems or complex decisions. It requires reflection, analysis, and conscious evaluation of alternatives.

The problem arises when we use System 1 to make decisions that actually require the intervention of System 2.

In business, this happens frequently: we hire people, accept business proposals, or make investments based on quick intuitions when it would be more appropriate to stop and analyze data and scenarios.

What are cognitive biases?

Cognitive biases are mental shortcuts that the brain uses to save energy and process information faster.

They are not signs of a lack of intelligence, nor are they errors exclusive to certain people. They are natural mechanisms of human functioning.

The difference between a person who makes better decisions and one who doesn’t lies not in the absence of biases, but in the ability to recognize and manage them.

Five Biases That Frequently Affect Entrepreneurs

Confirmation Bias
This involves seeking out information that confirms our pre-existing beliefs while ignoring evidence that contradicts them.

For example, an entrepreneur might become convinced that a new product will be successful and begin paying attention only to positive feedback, ignoring warning signs or market research that suggests otherwise.

This bias can lead to unprofitable investments and decisions based on incomplete information.

Helpful Question: What evidence contradicts my idea?

Anchoring Bias
This occurs when the first piece of information we receive unduly influences our subsequent decisions.

It is very common in price negotiations.

If a supplier initially presents a product at a high price and then offers a discount, we may perceive the offer as attractive even though it is still above the actual market value.

The initial price acts as an “anchor” that conditions our perception.

Helpful Question: Am I evaluating this proposal with objective data or comparing it only to the first figure I heard?

Loss aversion and sunk cost fallacy
People often feel more pain from losing something than satisfaction from gaining something equivalent.

In business, this can translate into a reluctance to abandon projects, products, or strategies that aren’t working simply because time, money, or effort has already been invested in them.

However, past investments shouldn’t determine future decisions.

Helpful question: If I were starting from scratch today, would I make the same decision again?

Overconfidence
Sometimes we believe we have mastered areas we don’t actually know in depth. This phenomenon can lead to rejecting training, ignoring expert advice, or making decisions without gathering enough information. Overconfidence often arises when we transfer our expertise in one specific area to other disciplines where we don’t possess the same level of knowledge.

People with a lifelong learning mindset tend to significantly reduce this risk.

Helpful question: What relevant information might I be missing?

Availability bias
This involves considering examples that we easily recall as more important or likely. For example, if we know someone who was successful with a particular business, we might assume that this activity will be profitable for us without analyzing whether our circumstances are similar. What’s memorable doesn’t always reflect statistical reality.

Helpful question: Am I making this decision because I have data or because I remember a similar case?

Tools for making more objective decisions

Although biases are inevitable, there are techniques that help reduce their influence.

The devil’s advocate

This involves assigning one person the specific task of questioning a proposal and presenting counterarguments.

This practice forces you to analyze risks that might normally go unnoticed.

The 10/10/10 rule

Before deciding, ask yourself:

How will I feel about this decision in 10 minutes?

How will I feel in 10 months?

How will I feel in 10 years?

This exercise helps broaden your perspective and avoid impulsive decisions.

The WRAP Method

This is a decision-making model that proposes:

Expanding available options.
Comparing assumptions with reality.
Taking emotional distance before deciding.
Preparing for different future scenarios.

Its goal is to prevent a single perspective from dominating the decision-making process.

Leadership also influences biases.

Biases don’t only affect those who run a business. They can also become part of the organizational culture.

If a leader only listens to opinions that align with their own, the team will end up avoiding expressing disagreements.

If they project excessive confidence, others may stop pointing out potential errors.

Therefore, developing self-awareness is a strategic investment for any undertaking.

Three Practices for Building Better Decision-Making Teams

Create spaces where dissent is welcome. People need to feel safe expressing differing opinions without fear of negative consequences.

Evaluate the quality of decisions, not just the results. A good decision can produce an unfavorable outcome due to external factors. Similarly, a bad decision can appear successful simply by luck.

The important thing is to analyze the process that led to the decision.

Review assumptions regularly. The market is constantly changing. What seemed true a few months ago may no longer be so.

Reviewing beliefs and strategies periodically helps avoid accumulating errors.

Cognitive biases are a normal part of brain function. They cannot be eliminated, but they can be managed.

Entrepreneurs who develop the habit of questioning their own ideas, critically analyzing information, and fostering dialogue within their teams are more likely to make sound and sustainable decisions.

Ultimately, one of the most important competitive advantages for a business isn’t just having good products or services, but developing the ability to make better decisions. Because behind every strategy, investment, or innovation, there’s always a human decision. And understanding how our minds work is the first step to improving them.