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Why We Make Irrational Money Decisions

  • Writer: Austin Attaway
    Austin Attaway
  • Jun 21
  • 6 min read

We like to think money decisions are rational. We tell ourselves that if we just had more information, more discipline, or a better spreadsheet, we would always make the “right” choice.

But that is not how people actually work.



Money is never just about numbers. It is about emotion, identity, family, fairness, fear, security, freedom, and habit. That is what makes the psychology of money so important. Our financial behavior is shaped not only by what we earn or spend, but by what money means to us. And often, that meaning was formed long before our first paycheck.


In this conversation, Dr. Adrian Furnham makes a compelling case that many of our financial choices are emotional first and rational second. That does not mean people are foolish. It means people are human. Understanding that can help us become more aware, more intentional, and ultimately better with money.


Money is psychological before it is mathematical

One of the clearest takeaways from the episode is that psychologists and economists often look at money differently. Economists tend to focus on systems, markets, and rational choice. Psychologists focus on individuals: how people learn about money, what they feel about it, and why two people in the same situation can behave in completely different ways.

That difference matters.


If money were purely rational, people would not sabotage themselves with impulsive spending, avoid looking at their accounts, fight with their partners over finances, or feel shame around basic budgeting. But people do all of those things. Not because they lack intelligence, but because money is tangled up with emotion and personal history.


As Dr. Furnham puts it, people are not always logical. They are “psychological.” That single idea explains a lot about why good advice alone often fails to change financial behavior.


Your money story probably started in childhood

Many adults assume their money habits began when they started earning. In reality, those habits often begin much earlier.


Children absorb messages about money from the people around them: whether it is talked about openly or treated as taboo, whether it is spent freely or held tightly, whether it is associated with fear, pride, conflict, or aspiration. These lessons are not always explicit. Often they are modeled through everyday behavior.


In the episode, Dr. Furnham reflects on how his own upbringing shaped his relationship with money. He grew up with strict rules around spending and with a strong sense that money should be handled carefully. Later, exposure to someone from a much wealthier background showed him just how differently people can think about and use money. That contrast helped spark his interest in the field.



This is one reason money can become so loaded in adult relationships. Two people may not simply disagree about spending. They may be operating from entirely different money scripts. One person may see saving as responsibility. Another may experience it as restriction or fear. One may see spending as care or freedom. Another may interpret it as recklessness.


Without talking about those deeper assumptions, couples often end up arguing about transactions when the real issue is meaning.


Why irrational financial behavior is so common

Behavioral economics has spent decades documenting what many people already sense intuitively: financial decisions are full of shortcuts, biases, and emotional distortions.


People anchor on the first price they see. They overvalue what they already own. They hate losses more than they enjoy equivalent gains. They are nudged by the way options are framed and presented. These effects show up everywhere, from salary negotiations to grocery shopping.


One example from the episode is the decoy effect. If a store offers cheap tomatoes and expensive tomatoes, many customers will choose the cheaper option. But if the store adds a third, even more expensive “premium” option, suddenly the middle choice can feel reasonable or even economical. Nothing has changed about the original options, but perception shifts. That is psychology at work.

The implication is important: some bad money decisions are not simply failures of willpower. They happen because our brains are constantly taking shortcuts in environments that are designed to influence us.


That does not remove personal responsibility. But it does suggest that awareness matters more than self-judgment.


Personality shapes financial behavior

Not everyone relates to money in the same way, and personality is part of the reason why.

According to Dr. Furnham, attitudes toward money are shaped by a mix of personality, sex differences in socialization, socioeconomic background, and culture. Some people naturally use money for excitement. Others use it for safety. Some avoid financial details altogether, while others monitor every movement obsessively.


He also describes common symbolic meanings people attach to money. For some, money represents security. For others, it represents power, love, or freedom. These are not just abstract categories. They influence daily behavior. Someone who equates money with security may save compulsively and struggle to enjoy what they have. Someone who equates money with freedom may prioritize experiences, travel, and flexibility. Someone who sees money as love may express care through gifts and generosity.


None of these patterns are inherently good or bad. But each comes with blind spots.


The point is not to label yourself. The point is to become more honest about what money means to you, because that meaning may be quietly guiding your decisions.



Intelligence is not the same as financial wisdom

One of the more refreshing parts of the conversation is the rejection of a common myth: that smart people naturally make smart money decisions.


They do not.


Dr. Furnham notes that intelligence may be helpful, but it is not enough. Financial success often depends more on discipline, risk tolerance, determination, awareness, and habit than on raw IQ. In his view, being bright is useful, but far from sufficient.


This matters because many people feel ashamed when they struggle financially despite being capable, educated, or professionally successful. But financial behavior is not a simple test of intelligence. It is a mix of cognition, emotion, social learning, and personality.


That should be encouraging. It means better financial behavior is not reserved for some elite group of naturally gifted people. It is something that can be practiced.


Delayed gratification still matters

The episode also returns to a classic psychological idea: delayed gratification.

At a basic level, financial health often requires the ability to tolerate not getting what you want right now in exchange for something better later. Saving, investing, budgeting, and avoiding impulse purchases all depend on that ability to some extent.


Dr. Furnham points to the broader lesson behind delay of gratification research: impulsivity can be costly, and learning to pause matters. That does not mean never enjoying money or becoming rigid and joyless. It means recognizing that immediate temptation is not always aligned with long-term well-being.


In other words, maturity with money is not just about earning more. It is about building a better relationship with waiting, planning, and intentional choice.


Money, happiness, and the wrong goal

Another major myth challenged in the discussion is the idea that money automatically produces happiness.


The more accurate view is subtler. Lack of money can absolutely create distress, instability, and misery. Financial insecurity makes life harder. But beyond a certain point, more money does not necessarily translate into more happiness. Dr. Furnham argues that money may provide comfort, options, and relief from stress, but it is not a reliable path to fulfillment on its own.

This is a powerful reframe.


It means the pursuit of money can become unhealthy when money stops being a tool and becomes the central measure of a life. Wealth may matter. But meaning, relationships, purpose, and personality matter too.


The goal, then, is not to pretend money is irrelevant. It is to put it in its proper place.


A simple habit that can change your financial life

Toward the end of the episode, Dr. Furnham offers a practical suggestion that stands out for its simplicity: spend 30 minutes each week reviewing your finances. Look at what came in, what went out, and where your money actually went. Monitor it regularly.


That may sound basic, but it is psychologically powerful.



Behavior often improves when it is observed. The same principle shows up in health, productivity, and habit formation. When people stop avoiding the numbers and start noticing patterns, they become more able to make intentional adjustments.


The goal is not shame. The goal is awareness.


That awareness helps break the cycle of avoidance that so often keeps financial stress alive.


Final thought + A Small Ask

The psychology of money reminds us that financial behavior is rarely just about dollars and cents. It is about how we were raised, what we fear, what we value, what we avoid, and what we believe money can do for us.


That is why irrational financial decisions are so common. They are not random. They are often expressions of deeper scripts and emotions running quietly in the background.


The good news is that what can be learned can also be examined. And what can be examined can start to change.


Sometimes better financial decisions do not begin with a new budget. They begin with a better question: What does money mean to me, and where did I learn that?


If this conversation and this community have been meaningful to you, consider becoming a monthly member for just $1/month. Your support helps us keep creating thoughtful, accessible psychology content and growing this space for deeper conversations. And to those already supporting us as Mental Health Ambassadors: thank you for helping make this community possible.



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