Why we are irrational with money

• A. People always track every expense in a single unified budget
• B. People divide money into separate mental categories and treat each category differently, even though money is fungible ✓
• C. People only think about money in terms of long-term investment returns
• D. People ignore money entirely when making everyday purchasing decisions

Why: Mental accounting, a concept developed by Richard Thaler, describes how people sort money into mental buckets (such as 'rent money' or 'fun money') and make different spending choices for each bucket, even though a dollar is interchangeable with any other dollar.

• A. Person 1, because they paid for the original ticket and feel the sunk cost less
• B. Person 2, because a free ticket has no monetary value to them ✓
• C. Both are equally likely, since the lost value is the same $50
• D. Neither, because people never replace lost tickets

Why: Person 2 may feel the loss is not a real expense because the ticket was free, so they are less likely to pay again. Mental accounting predicts that the origin of the money affects how we value losses, even though the actual financial loss is identical in the two cases.

• A. Because credit card interest is always lower than savings interest
• B. Because the savings account is mentally labeled as an emergency fund and the debt is mentally separated from it ✓
• C. Because banks require customers to keep a minimum savings balance
• D. Because savings accounts are safer than paying off debt

Why: Mental accounting leads people to keep money in separate buckets. Someone may feel attached to a savings 'emergency fund' and avoid touching it, even though using it to pay off high-interest debt would make them financially better off.

• A. Tax refunds are typically larger than paychecks
• B. People treat windfall money as a separate mental account and feel freer to spend it ✓
• C. Vacations are only affordable with tax refund money
• D. People are required by law to spend tax refunds on travel

Why: Money from unexpected sources like tax refunds is often labeled as 'bonus' money, which people feel more comfortable spending on luxuries. This is a classic example of mental accounting, since the money has the same value regardless of its source.

• A. Keeping money in as many separate accounts as possible
• B. Viewing all your money as one total pool and asking whether a choice is the best use of your overall resources ✓
• C. Spending windfalls immediately so they do not build up
• D. Avoiding all budgeting, since budgets are based on mental accounts

Why: Recognizing that money is fungible and evaluating decisions against your total financial picture reduces the distortions caused by mental accounting. Budgets can still help, but they work best when used consciously rather than as rigid, emotionally charged buckets.

• A. The tendency to take bigger risks after a series of gains
• B. The tendency for losses to feel more painful than equivalent gains feel pleasant ✓
• C. The tendency to sell winning investments too early
• D. The tendency to ignore prices when shopping

Why: Loss aversion describes the psychological pattern where losing a sum of money creates more emotional impact than gaining the same amount, which is why losses hurt more than gains feel good.

• A. The Stanford Prison Experiment
• B. The Marshmallow Test
• C. Kahneman and Tversky's prospect theory experiments ✓
• D. Milgram's obedience experiments

Why: Daniel Kahneman and Amos Tversky's work on prospect theory, published in 1979, showed that people weigh losses roughly twice as heavily as equivalent gains.

• A. Because they expect the coin to be rigged
• B. Because the expected value is negative
• C. Because the pain of losing $100 outweighs the pleasure of winning $100 ✓
• D. Because they cannot understand probability

Why: Due to loss aversion, the emotional weight of a $100 loss is typically larger than the emotional weight of a $100 gain, so a fair bet can feel unattractive.

• A. They sell winning stocks too quickly and hold losing stocks too long ✓
• B. They buy stocks only when prices are falling
• C. They diversify their portfolios across too many assets
• D. They always follow expert financial advice

Why: Investors often sell gains early to lock in pleasant feelings and hold losers in hopes of breaking even, avoiding the pain of realizing a loss. This tendency is known as the disposition effect.

• A. Buying a discounted item you do not need because it seems like a bargain
• B. Keeping an old subscription you no longer use because canceling feels like losing something ✓
• C. Saving a fixed percentage of each paycheck
• D. Comparing prices across several stores before purchasing

Why: Keeping an unused subscription to avoid the feeling of giving up something you already have reflects loss aversion, since canceling feels like a loss even when the money saved is a gain.

• A. A tendency to overvalue rewards that arrive far in the future compared to rewards available today
• B. A tendency to overweight immediate rewards and underweight future consequences, making spending now feel more appealing than saving for later ✓
• C. A tendency to always choose the cheapest option regardless of quality
• D. A tendency to trust financial advisors more than one's own judgment

Why: Present bias describes how people give disproportionate weight to what is immediate, so the pleasure of spending now tends to outweigh the benefits of saving for a future payoff.

• A. A person carefully compares prices across stores before buying a television
• B. A person intends to save 10% of each paycheck but keeps postponing the transfer to a savings account because the new gadget they want is available now ✓
• C. A person invests in a diversified index fund and rebalances it annually
• D. A person pays off a credit card balance in full every month

Why: The gap between intending to save and actually saving, driven by the appeal of an immediate purchase, is a classic example of present bias overriding a long-term goal.

• A. Automatic systems reduce interest rates on savings accounts
• B. Automation removes the moment-to-moment decision, so the immediate pull of spending has less chance to win out ✓
• C. Automatic saving guarantees a higher return on investment
• D. Banks only offer high-yield accounts to people who save automatically

Why: Automatic transfers take the decision out of the present moment, which counteracts present bias because the saving happens before the temptation to spend appears.

• A. Keeping savings goals vague so they feel flexible
• B. Carrying more cash so spending is easier to track
• C. Making a commitment in advance, such as a locked savings account or a recurring transfer scheduled for payday ✓
• D. Waiting until you feel more motivated before setting any savings plan

Why: Precommitment strategies lock in future saving decisions before present temptations arise, reducing the influence of present bias.

• A. It causes people to save too much for retirement because they worry excessively about the future
• B. It leads people to delay saving for retirement because the costs are immediate while the benefits seem distant and abstract ✓
• C. It has no effect because retirement decisions are made by employers
• D. It causes people to only invest in assets that pay out immediately

Why: Retirement benefits are decades away, so the present cost of saving feels large while the future reward feels remote, which often leads to procrastination in saving.

• A. Loss aversion
• B. Overconfidence bias ✓
• C. Anchoring
• D. Herd mentality

Why: Overconfidence bias is the tendency to overestimate the accuracy of our own knowledge and predictions, which can lead to excessive trading, underestimating risks, and poor money decisions.

• A. Confirmation bias only
• B. Overconfidence bias ✓
• C. Sunk cost fallacy
• D. Recency bias

Why: Claiming you consistently beat the market without systematic evidence is a classic sign of overconfidence. Most people remember their wins and forget their losses, which inflates their sense of skill.

• A. They pay fewer taxes
• B. Overconfidence leads them to trade too often, increasing transaction costs and mistakes ✓
• C. They avoid market downturns entirely
• D. They always diversify better

Why: Overconfident investors tend to believe they can time the market or pick winners, so they trade more. Each trade carries fees and spreads, and their confidence often leads to poorer decisions than a simple buy-and-hold approach.

• A. Relying only on your memory of past successes
• B. Keeping a written record of predictions and comparing them to actual outcomes ✓
• C. Making bigger bets when you feel certain
• D. Avoiding all financial information

Why: Tracking your predictions against real results gives you honest feedback. It reveals when your confidence exceeds your accuracy, helping you calibrate your judgment over time.

• A. Good calibration
• B. Loss aversion
• C. Overconfidence ✓
• D. Diversification

Why: When subjective certainty is significantly higher than the actual success rate, that gap is the core signature of overconfidence. Well-calibrated judgment would bring confidence much closer to the observed accuracy.

• A. Investors making decisions based solely on detailed fundamental analysis of company data
• B. Investors copying the actions of a larger group rather than relying on their own independent judgment
• C. Investors deliberately spreading their money across many different asset classes
• D. Investors holding onto losing stocks because they refuse to admit a mistake

• A. Because the crowd always has access to better information than individuals
• B. Because people assume others know something they don't, and following the group feels safer than standing alone
• C. Because group decisions are legally required in most investment accounts
• D. Because individuals are incapable of understanding basic price charts

• A. The invention of the telephone in the 1870s
• B. The Dutch Tulip Mania of the 1630s
• C. The creation of the first public stock exchange in London
• D. The introduction of standardized accounting rules

• A. Investors sell assets gradually so prices remain stable
• B. Rising prices attract more buyers who follow the trend, pushing prices further above their true value
• C. Investors ignore all price movements and only buy during recessions
• D. Governments force investors to hold the same portfolio of assets

• A. Waiting until a product or stock is extremely popular before buying it
• B. Setting clear investment goals and criteria in advance, and checking whether your decision rests on your own analysis
• C. Buying whatever your friends and social media followers recommend
• D. Making large purchases quickly to avoid missing out on trends

• A. The tendency to ignore prices altogether when shopping online
• B. The tendency to rely heavily on the first price or number we see when judging the value of something ✓
• C. The habit of always choosing the cheapest option available
• D. The practice of setting prices based only on production costs

Why: Anchoring describes how the first number we encounter, such as an original price, becomes a reference point that distorts how we judge the value of everything that follows.

• A. Because the sale price is always the true market value
• B. Because the $300 figure anchors your sense of value, making $120 seem like a bargain ✓
• C. Because crossed-out prices are illegal in most countries
• D. Because people never compare prices across stores

Why: The high original price serves as an anchor. Once you see $300, your mind treats $120 as a large saving, even though the item's actual worth may be closer to $100 or less.

• A. Calculating your monthly budget using a spreadsheet
• B. Deciding a home's fair price based mainly on the seller's initial asking price ✓
• C. Comparing the unit prices of two cereal brands
• D. Reading a receipt after a purchase

Why: When buyers judge a home's value mainly by the seller's opening asking price, they let that first number anchor their assessment rather than evaluating the property independently.

• A. Because people only anchor on numbers they have calculated themselves
• B. Because the brain uses the first available number as a starting point and adjusts insufficiently from it ✓
• C. Because arbitrary numbers are always more accurate than researched ones
• D. Because anchoring only affects people with low intelligence

Why: Research on anchoring shows that people adjust insufficiently from a starting value, so even random or irrelevant numbers can pull judgments toward them.

• A. Only shop at stores that never display original prices
• B. Decide on a fair price for the item before looking at the seller's listed price or discounts ✓
• C. Always buy the most expensive version to be safe
• D. Ignore all product details and focus only on brand names

Why: Establishing your own reference value before seeing the seller's numbers helps prevent the seller's anchor from setting your expectations.

• A. Compound spending
• B. Emotional spending ✓
• C. Opportunity spending
• D. Fixed spending

Why: Emotional spending refers to purchases driven by feelings such as stress, boredom, sadness, or happiness rather than by planned needs or budgets. It is a common way emotions override rational financial decisions.

• A. Professional counseling for debt management
• B. Shopping as a way to relieve stress or lift one's mood ✓
• C. A store loyalty program that offers therapy discounts
• D. Budgeting exercises taught in financial workshops

Why: Retail therapy is the habit of shopping to feel better emotionally. The short-term mood boost from buying something can reinforce the behavior, even though the underlying stress is usually not resolved.

• A. Stores deliberately raise prices on stressed customers
• B. Emotional states narrow focus on immediate relief and can distort judgment about long-term value
• C. Sad people always buy the wrong size or color
• D. Negative emotions make people forget their bank balance exists

• A. Keeping saved payment information stored on all shopping sites
• B. Shopping while hungry or tired to save time
• C. Adding a waiting period of 24 to 48 hours before non-essential purchases
• D. Using only cash-back credit cards for every purchase

• A. Confirmation bias
• B. Anchoring bias
• C. Loss aversion
• D. Bandwagon effect