Another problem is that overconfident people may be attracted to the latest, highly fashionable
investment just for the thrill. Terrance Odean, a finance professor at University of California
Berkeley says, 'You can be investing just to entertain yourself.' This phrase was invented by Prof
Thaler. It refers to how people evaluate their finances depending on the origin of the money
(monthly salary? an inheritance? a credit card?) and its intended use (an investment? new clothes?
small treats?). Instead of thinking about all money as being equally important in our life, Prof Thaler
argues that people see it as relative, depending on its origin and purpose. For example, if you make
a gain on the stock market, then you see that money differently to your salary. You might use the
investment gain to make new, risky investments because in your mind you didn't really earn it.
On the spending side, there is the 'Starbucks effect', says Mr Cordaro. 'You will spend $5 a day at
Starbucks as a little treat,' he says, 'But you don't consider the impact of that on your whole
budget. A better way to decide whether you can afford daily coffee treats is to add up the costs
over a whole month - then you can see if the value you get from the Starbucks visits is really
justified in comparison to other uses for your money.
Addressing these spending biases requires a comprehensive approach to budgeting and financial
awareness. Utilizing budgeting applications like Mint or YNAB (You Need A Budget) enables real-
time tracking of expenses and provides a holistic view of spending patterns. Categorizing
expenditures and setting explicit monthly limits for discretionary spending encourages mindful
consumption. The 'cash envelope' method-allocating a fixed amount of cash for specific expenses
at the start of the month-can make the cost of frequent small purchases more tangible, thereby
reducing unnecessary spending. By evaluating the cumulative cost of habitual expenses, such as
daily coffee purchases, individuals can make informed decisions about the value derived from such
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