What is the Denomination effect?
When a price is given in a smaller denomination, people tend to perceive it as being lower than it actually is. This can be used in marketing and sales, for example when an item mentioned at $4.99 sounds much cheaper than one that costs $5.00.
This type of thinking leads to only seeing the cheaper price and ignoring the actual cost of something, leading to less money spent compared with if all prices were written out instead of just their respective denominations by which they are known (e.g., $1 or $2). For example, if you give someone $100 vs 100 singles, they’re more likely to spend the ones than the other person receiving the same amount of money.
Why does this cognitive bias exist?
This type of thinking is a result of people not paying as close attention to the difference between a higher denomination and a smaller denomination, leading to them taking in less information when they see it. This can be explained with an example: If you were going to give me $100 versus giving me 100 singles all at once, I’ll probably take the $100 because it’s simpler for my brain, but if you give one hundred singles, I will think about each individual bill and would probably count them up instead of just counting how many singles there are, again leading to me taking in more information than if I’d been given $100.
How do people use this bias?
In marketing, if a product is listed as $4.99 it sounds much cheaper than one that costs $5.00, which makes people more likely to buy the product for less money. This can be used to give the person less spending power and lead to them buying more things with what they have or spending more money on something because of its smaller price tag. This bias has been used in sales all over the world.
How can we create this bias?
This can happen by seeing numbers written out without thinking about it too hard compared with hearing a number but still writing it out instead of just sayings its monetary value (e.g., $1). For example, if you said « five dollars » instead of writing it out, you’re less likely to take in the number as much as if you were to say « five dollars. »
How to avoid this bias?
Try not exciting yourself too much about a price being cheaper than something else. Instead, try thinking of the full monetary value before buying or using or even just paying attention to things with prices, especially when someone is talking about them. For example, if your friend told you that they bought something for $4.99 instead of saying they bought something for $5., pay more attention to the actual amount being spent rather than just taking in how cheap it seems compared with something else that might cost more, which will help you understand better the amount being spent and stop getting ripped off through these types of tactics.
Denomination effect examples:
If I gave you $100 (or 100 singles), how do you know which denomination the money is in? You probably wouldn’t pay close attention to its monetary value and would most likely be less inclined to spend it if it was written out as « one dollar » versus saying « five dollars. » If this was not enough, say someone told you that they bought a product for $4.99 and then heard that their friend bought the same product for $5., which one would you rather buy? Again, the person paying more attention to the full monetary value is likely going to pick the one that’s listed with a larger denomination because they’re taking in more information as opposed to someone who’s not considering the monetary value of each bill and will take in less information.
Which profession use the bias?
Marketers, sales people, cashiers, waitstaff/servers, anyone who might want something from you. Although the person giving a price might not be doing it to get something back or even mean to give this type of cognitive bias by saying or writing out their prices like that (e.g., $4.99), there are some people who would do it on purpose with bad intentions by trying to make things seem cheaper than they really are compared with using up all its denominations which can be done easily by just writing it out (e.g., $5.) which will lead to the person thinking about the product in more detail than if they’d been given $100 or 100 singles.
Why this bias is dangerous?
Since this is a cognitive bias, it’s also dangerous because when someone thinks deeper about something (e.g., what’s in it for me?) but not when they take in less information like through written out denominations instead of full monetary value (e.g., « one dollar » rather than « $1. »), that can give an unfair advantage in marketing or any other situation where there are price tags involved (e.g., the difference between taxable and non- taxable things). This can be used by marketers who want to increase sales numbers without actually changing prices of products themselves just by changing their ways of representing their prices, which can lead to higher sales and more money for companies through the principle of the sunk cost fallacy .
Conclusion.
denomination effect is a cognitive bias where someone won’t take in the full information of something like if it’s written out as « $5. » or « five dollars » instead of taking in all its denominations (e.g., $1.) to give the person paying more thought to the amount they’re spending (and because people can be tricked into thinking things are cheaper than they really are), which will create an unfair advantage for marketers and salespeople who want to influence you more on your thoughts, behavior, and decision making through this type of method.
Secrets de Marketeurs 