As you buy more and more cups of ice cream, the price decreases.
So, for example, one cup of ice cream is 12 lei, if you buy another one, it’s 10 lei, and the third one is either 10 lei, again, or 8 lei.
The thing is, just by looking at the above pricing, it makes sense to buy more and more cups.
But we know from psychology that we tend to derive less and less pleasure from something.
So, the first cup of ice cream brings you lots of joy, the second one a lesser amount of joy, while the third one – lesser, even.
There’s a tendency to just look at the pricing („But it’s so cheap to buy the third cup!”), instead of also taking into account personal satisfaction („You’ll likely enjoy the third cup not-so-much”).
