Behavioral Economics in Decision Making

As I continue to revisit ‘It Pays to Talk: How to Have the Essential Conversations with Your Family about Money and Investing’—a book I co-authored with my dad almost 25 years ago—one piece of advice has been especially top of mind: the danger of mental accounting. While flipping through the pages, I realized that this is a pitfall I’ve seen many people wrestle with over my 40 years in personal finance. By definition, mental accounting is a behavioral economics concept describing how people categorize, evaluate and manage money in different “mental accounts” rather than treating all money as interchangeable. Let me give you just a few examples. If you tend to treat your hard earned income differently from the way you treat other money- say a tax refund or a lottery winning- you’re guilty of mental accounting. Or think about credit cards. Studies show that people are willing to spend a lot more money on something if they are paying by credit card because they often feel like it’s an unlimited resource and that there is more money available than there actually is. The truth is, a dollar is a dollar—whether you’re using a debit card, credit card, or cash. All your money should be used in accordance with what you are trying to achieve. This is not to say you shouldn’t treat yourself when you receive an unexpected bonus or spend extra money on something meaningful. But regularly treating money differently based on where it’s derived can derail your financial plan. Instead, think strategically about how to allocate any extra money—whether it’s saving and investing for retirement, putting money aside for a rainy day, saving for a special family trip or paying off debt. It’s important to maintain a consistent approach to all money, not just what’s coming from a windfall or a credit card. What’s your approach to handling unexpected money? Do you treat it differently than your regular income? I’d love to hear in the comments below. #ItPaysToTalk #FinancialLiteracy #SmartMoney #MoneyTalks

Your brain on cash—Dumb, hungry, & impulsive Ever wonder why buying something on sale feels like winning the lottery, but saving for retirement feels like homework? Welcome to the psychology of money—where emotions, biases, & habits play a bigger role than calculators ever could. Our brains are wired for instant gratification. Behavioral finance research shows that spending activates the brain's reward center, releasing dopamine—the same chemical linked to pleasure. This is why impulse buys often feel so satisfying. According to Daniel Kahneman, author of "Thinking, Fast & Slow," our brains have two systems: • System 1: Fast, emotional, & instinctive (the one that clicks "buy now"). • System 2: Slow, rational, & deliberate (the one that reminds you rent is due). Unfortunately, System 1 often wins the battle, which is why people overspend, rack up credit card debt, & regret it later. Saving money isn’t always about being responsible; it’s often about fear—fear of losing a job, unexpected expenses, or running out of money in retirement. Loss aversion, a term coined by Kahneman, explains that we feel the pain of losing money more intensely than the pleasure of gaining it. This fear can lead to hoarding cash instead of investing, which ironically makes us lose value over time due to inflation. Investing taps into hope for a better future but is also influenced by greed & overconfidence. Behavioral studies from the Financial Behavior Lab show that people are prone to herd behavior—buying stocks when everyone else does & panicking during market downturns. This tendency to follow the crowd often results in buying high & selling low, the opposite of successful investing strategies. (PS: Forget “buy low, sell high.” It’s all about “buy high, sell higher.” But that wild ride deserves its post.) Common cognitive biases in money decisions: • Loss aversion: We avoid losses more than we seek gains, leading to risk-averse behavior. • Anchoring bias: We rely too heavily on the first piece of information we receive, like sale prices, even if they’re artificially inflated. • Mental accounting: We treat money differently based on its source. Bonus money? Treat yourself. Salary? Pay the bills. • Sunk cost fallacy: We keep throwing money into bad investments because we’ve already spent so much. How to outsmart your brain & build better money habits: • Automate savings: Remove emotions by setting up automatic transfers to savings & investments. • Reframe spending: Instead of thinking, "I can’t afford this," think, "I’m choosing not to spend on this." • Diversify investments: Spread risk & avoid emotional reactions to market swings. • Delay big purchases: Implement a 24-hour rule to avoid impulse buys. Money decisions are rarely about math. They’re about psychology, habits, & how we feel in the moment. The good news? Understanding these biases gives you the power to take control. #FinancialLiteracy #Investing #Investments #PersonalFinance

When News Headlines Trump Harvests: The New Reality of Agri-Commodities Trade!! The global agriculture commodities market—once dictated by the age-old forces of supply and demand—is now increasingly driven by something far more volatile: the next headline. The delicate balance between what farmers produce and what consumers need is being overshadowed by the constant churn of news, rumors, and speculative sentiment that ripple through digital and financial ecosystems. In today’s world, prices of wheat, soybeans, rice, or pulses no longer wait for a drought or bumper crop; they move the moment a policy is hinted at, a trade route is disrupted, or a tweet from a president or minister goes viral. Traditionally, the agri-commodity markets were rooted in tangible fundamentals—acreage, rainfall, yield, stock-to-use ratios, and consumption data. A trader’s expertise was measured by his ability to read the monsoon, anticipate harvest size, or interpret export numbers. However, with the financialization of agriculture, where hedge funds, algorithms, and speculative instruments dominate trading floors, the markets have become hypersensitive to perception. A simple headline such as “India considering export ban on rice” or “El Niño may return” can trigger global price surges long before any real supply constraint manifests. This transformation is fueled by information velocity and emotional contagion. In an era where commodity prices are tracked tick-by-tick and social media amplifies every rumor, markets behave less like rational systems and more like living organisms reacting to stimuli. The fear of missing out (FOMO) or the anticipation of future policy shifts often outweighs actual data. As a result, traders today are not just reading crop reports—they’re decoding geopolitics, climate signals, and even election manifestos. Moreover, algorithmic trading and predictive analytics, while improving efficiency, have also intensified volatility. Machines execute trades not on ground reports but on keyword triggers. A sudden spike in search trends for “drought,” “tariff,” or “conflict” can activate automated buying or selling across continents. This creates a self-reinforcing loop—headlines shape market reactions, which in turn generate new headlines. For farmers and policymakers, this shift is unsettling. Price discovery, once a function of harvest and demand, is now often divorced from reality. Countries face the dual challenge of managing domestic price stability and navigating an international market swayed by sentiment rather than substance. In essence, agriculture—once the most grounded of all human activities—is now part of a nervous, interconnected ecosystem where perception often precedes production. The harvest may still grow in the field, but its price is increasingly harvested in the newsroom.

Why Human Behavior Matters Most deals don’t fail because the numbers were wrong—the people were. We can model cost-savings down to the penny, but a single cognitive bias can wipe out the entire gain. That’s why I never look at NegoEconomics (the asymmetric value between one side’s cost and the other side’s earnings) in isolation. Every figure on the spreadsheet is attached to a human being with hopes, fears, and mental shortcuts. Where NegoEconomics Meets Psychology Great negotiators recognise two value streams running in parallel: Economic Value – the measurable spread we can optimise through variables like terms, volume, and risk-sharing. Psychological Value – the trust, fairness, and perception factors that decide whether the deal actually sticks. Ignore either stream and you leave money—or goodwill—on the table. Three Biases That Quietly Sabotage Deals Anchoring: The first price we hear sets a mental benchmark. Even concessions orbit that anchor. Confirmation Bias: We hunt for data that proves we’re right and overlook signals that could save us from a bad decision. Sunk-Cost Fallacy: We cling to a negotiation simply because we’ve invested time or money, not because future value exists. Action Steps You Can Use Today Re-Anchor Early: Come to the table with your own credible reference points—market comps, total-cost analyses, or third-party benchmarks. Run a “Bias Audit”: Before agreeing, ask a neutral colleague to challenge your assumptions. What facts are you ignoring because they don’t fit your narrative? Install a Walk-Away Trigger: Define—up front—the point at which continuing talks destroys value. Commit in writing so emotions don’t hijack the decision later. Use AI to check your decisions. AI is mostly unbiased in its decisions. Bottom Line Negotiation is part math, part mind. Master both and you turn every conversation into a SMARTnership that compounds value over time. Download the PDF. What cognitive bias have you caught yourself—or your counterpart—falling into lately? Let’s compare notes in the comments. #negotiation SMARTnership Negotiation World Commerce & Contracting BMI Executive Institute Tine Anneberg Gražvydas Jukna Jason Myrowitz Tiffany Kemp Juan Manuel García P. Francis Goh, FSIArb, FCIArb Francisco Cosme

Price isn't just about a number—it's about the mental model that supports it. 🧠 When OpenStore approached us about OpenDesk—their AI customer support tool for eCommerce brands—they faced a classic behavioral challenge: pricing doesn’t exist in a vacuum. The behavioral POV on value is that it’s subjective and created in the moment. That was true here, too. It wasn't actually the price point that was holding them back. It was the invisible mental accounting happening in customers' heads. 😬 Merchants mentally categorized support tools as expenses, not investments. This mental accounting created a pricing perception problem. When something falls into your "expense" bucket, your goal is to minimize it. When it's in your "investment" bucket, you evaluate ROI instead. 💡 When we reframe the value proposition, willingness to pay changes. Instead of "better customer support," we positioned OpenDesk as a "customer retention driver" – shifting its category from cost center to revenue generator. With this new mental model established, we designed pricing strategies that reinforced this investment framing: 💲 A hybrid model combining subscription + per-ticket charges that balanced predictability with value 🔢 A usage-based option with an interactive calculator that made total costs transparent—similar to how merchants evaluate ROI on other investments 👥 A per-seat model that simplified budgeting while aligning costs with team structure Curious to see where they landed, or to get ideas on optimizing product positioning or pricing strategy? 👇 Check out the case study in the comments. #BehavioralDesign #AIStrategy #ProductPricing

Richard Thaler used to play poker with fellow economists. During those games, he noticed something intriguing. When they were losing, they played extremely conservatively. When they were winning, they became much more willing to take risks. But shouldn’t money always have the same value? This observation led Thaler to develop one of the most influential concepts in Behavioral Economics: Mental Accounting, a theory that contributed to his receiving the 2017 Nobel Prize in Economic Sciences. His conclusion was simple, yet powerful: people do not treat all money the same way. Our minds create mental “accounts.” The same amount of money is treated very differently depending on how we categorize it. You may spend US200 on a nice dinner without feeling any regret, yet argue over an extra US$5,00 for parking. Financially, it’s the same money. Psychologically, it isn’t. Dinner belongs to the “leisure” account. Parking falls under the “expenses” account. Here’s another classic example. You buy a US$50 ticket to a concert and lose it before entering. Most people decide not to buy another ticket. Now imagine you lose US$50 in cash before buying the ticket. In that case, most people still buy it. The financial loss is exactly the same. The psychological response is completely different. Thaler also showed that we prefer receiving two gains of US$50 rather than one gain of US$100, even though the total value is identical. Likewise, we would rather experience one loss of US$100 than two separate losses of US$50. Separate gains create greater satisfaction. Combined losses cause less pain. Niccolò Machiavelli had already expressed a remarkably similar idea more than 500 years ago in The Prince: “Injuries should be inflicted all at once, while benefits should be granted little by little.” Companies understand these psychological mechanisms extremely well. That’s why advertisements say “Save US$500” instead of “Pay US$2,000.” That’s why monthly subscriptions seem inexpensive, while the annual payment feels expensive. That’s why spending with a credit card often feels easier than paying with cash. It’s not just marketing. It’s psychology. Mental Accounting also explains why we spend an unexpected bonus more freely than our regular salary; why we’re extremely price-conscious at the supermarket but much less so at the airport; and why we continue paying for services we barely use simply because “we’re already paying for them.” Thaler’s greatest lesson is that money is mathematically fungible, but psychologically it is not. Our minds create categories, labels, and priorities that influence our decisions every single day. Understanding this mechanism is one of the first steps toward making more conscious decisions—not only about how we spend our money, but also about where we choose to invest our time, our knowledge, and our future. That last point deserves a separate reflection. Source: https://lnkd.in/eD4DzcY3

The Swiss savings paradox that blew my mind 🤯 Switzerland: 19.3% savings rate (highest in Europe) Also Switzerland: 67% feel financially insecure After 22 years working, I discovered why... We optimize for accumulation, not organization. Real example from my life: Washing machine died (CHF 1,200) + dental emergency (CHF 800) + car breakdown (CHF 3,500) - all in ONE WEEK. I had the money but spent three nights staring at the ceiling, calculating and recalculating. Mathematically: no problem. Psychologically: total panic. The solution? "3-bucket psychology": → "Oops Fund" (life's surprises) → "Projects Fund" (planned expenses)   → "Freedom Fund" (long-term growth) Same money. Different psychology. Zero stress. Richard Thaler (Nobel Prize) calls this "mental accounting." My son's reaction when our dishwasher broke last month: "Ah, that's what the Oops Fund is for!" He was right. Full behavioral analysis + practical solutions in my newsletter "Finance Made Human" ↓ https://lnkd.in/egkKDrEb Have you experienced this "wealthy but worried" feeling? Links to all languages: FR https://lnkd.in/e5Ya3X24 ALL https://lnkd.in/eDZfNHqd IT https://lnkd.in/et5BtEWw

Mental accounting, a concept introduced by behavioural economist Richard Thaler, describes the tendency of individuals to divide money into separate “mental accounts” based on its source or intended use, rather than treating all money as interchangeable. As a result, financial decisions are often shaped more by cultural traditions, social expectations, and emotions than by purely rational logic. This explains why people save and spend differently across categories: for example, salaried individuals typically allocate monthly income to essentials like rent, school fees, or EMIs, but treat bonuses, tax refunds, or windfalls as distinct accounts, often spending them on luxuries such as jewellery, electronics, or vacations instead of saving. This “income categorization bias” highlights how mental accounting can drive financial behaviour in ways that diverge from strict economic rationality.   The budgeting model of mental accounting is also visible when households maintain strict categories like groceries, healthcare, or entertainment, and resist reallocating funds. For instance, they may skip a family outing once the entertainment budget is exhausted, despite having savings elsewhere. Similarly, the concept is relevant in understanding sunk cost effects, where individuals feel compelled to continue paying or investing in something because of prior expenditures. A classic case is families continuing to fund costly coaching classes for children preparing for competitive exams despite poor results, reasoning that earlier spending justifies further commitment.   The house money effect provides another dimension, as young investors often treat trading profits as “free money” and take greater risks, while during festivals like Diwali, households reinvest winnings from card games or informal bets as if these were separate from regular income. Cultural practices in India also reinforce mental accounting: wedding shagun is usually invested in gold or deposits rather than used for routine expenses, and families keep dedicated festival savings for occasions like several festivals and events. Similarly, government transfers such as PM Kisan benefits or LPG subsidies are frequently treated as bonus income and spent on immediate consumption rather than integrated into long-term financial planning.   The relevance of mental accounting lies in its ability to explain both the disciplining role of such mental categorization, helping people control spending and align with cultural expectations, and its drawbacks, such as irrational persistence with sunk costs, failure to optimize across accounts, and higher risk-taking with perceived “windfall” money. While highlighting the psychological framing of financial decisions, mental accounting provides policymakers, financial advisors, and individuals with valuable insights into why people often deviate from rational financial planning, making it an indispensable framework for understanding real-world economic behaviour.

This Nobel Prize winner cracked the code of consumer behavior. His discovery: the same dollar feels different depending on where it comes from. Meet Richard Thaler. He wasn't your typical economist. While his colleagues obsessed over spreadsheets, Thaler observed people. What he discovered broke every rule in economics, and it follows predictable patterns that companies use every day to influence consumer behavior. He called it "Mental Accounting Theory." Here's how it works: Your brain creates separate mental buckets for identical amounts of money. A $100 bill in your wallet? You'll probably save it. A $100 Starbucks gift card? You'll buy coffee. The breakthrough came from watching this behavior thousands of times. People would drive across town to save $10 on a $100 purchase. But refuse to make the same trip to save $10 on a $1,000 purchase. This is the perfect example of mental accounting in action. Why would anyone buy a $50 gift card when they could give $50 cash? Cash is more flexible. More useful. More rational. Yet, gift card sales exploded because they solve a psychological problem: Gift cards give people permission to spend on themselves. That $50 Starbucks card feels like "fun money" instead of "real money." Major retailers caught on to these principles. Today, mental accounting influences how you spend money. This is why smart marketers frame pricing around value, not cost. And why the best sales teams focus on emotional impact, not just features. Gift cards generate billions in annual sales. Airlines leverage it with frequent flyer miles. Credit card companies use it with rewards points. Understanding the "Mental Accounting Theory" isn't just theoretical - it's competitive advantage. The context of money matters more than the amount. How are you applying mental accounting in your business strategy?

🚍 Why do "free public transport rides" work BETTER than fare discounts, even when they cost the same? An experiment with public transport (PT) users in Bogotá revealed something that changed the rules of the game for PT policy. Ingeniería Civil y Ambiental Uniandes 🧠 First, a key idea from behavioral economics: Our brains do NOT treat all money the same way. Mentally, we create separate "accounts" for different types of expenses: food, transport, rent, and so on. Economists call this the "mental accounting" bias. Imagine receiving $50 in cash versus a $50 voucher that can ONLY be used for transport. Economically, they are identical: the voucher frees up money you would have spent on transport anyway. But in practice, people behave differently. That's exactly what we measured. 🔬 How did we measure it? 👷🏻♀️ 1,607 frequent users of Bogotá's PT system 🎯 Random assignment into three groups: ✅ Treatment group: monthly PT voucher loaded onto a travel card (~US7.5/5.6 per month, for 4 months) ✅ Control group: no voucher We then tracked every trip, every card reload, and every transport expenditure over four months. Results: Voucher recipients increased their PT use by 9% per week (not surprising). But the REALLY interesting finding is not THAT. It is WHEN they traveled more and why usage increased more than expected. During the first two weeks (when the balance was still available), ridership surged ⏫ By weeks 3-4 (when the balance had been depleted), travel returned to normal levels (although they continued using the system). Coincidence? No. Here's the key point: It's similar to receiving a grocery gift card. Do we use it to buy exactly what we were already planning to purchase and simply save the cash? NO. We often spend it on EXTRA items we would not normally buy 🍺👗🥘. The same thing happened with PT. 🤯 To rule out alternative explanations, we did something novel: At the end of the study, we gave the control group a GROCERY voucher of similar value. If money were truly fungible, that voucher should also increase PT use (after all, it frees up money, right?). What happened? The grocery voucher had ZERO effect on PT usage. This confirms that people do NOT treat money as perfectly interchangeable. Each "mental account" follows its own logic. Transport vouchers are spent on transport. And they generate more PT use than before. For years, PT subsidies focused on 🚌 FARE DISCOUNTS (paying less per trip). In Bogotá, that approach had stopped working. "Free PT rides," on the other hand, move the needle. Same fiscal cost, greater impact for the most vulnerable populations. In February 2025, Bogotá reformed its subsidy program for vulnerable populations and implemented a "Free PT Rides" program, inspired by this research. The design of a subsidy can matter as much as—or even more than—the amount provided. 🤓 If you're interested, you can read the full study here: https://lnkd.in/ezAuEtft