I don’t know what “tuotto-odotus” (expected return) means in the sense you’re using it. It’s not necessarily the same as the expected value of return. The expected value is obtained as an aggregate, the sum of the products of the returns of all scenarios and their probabilities. If the dispersion is large, the expected value settles somewhere between the scenarios, far from the extremes.
For you, “tuotto-odotus” might also literally be an expectation: “if everything goes as it should,” or at most with a small reservation. I interpret it now that “tuotto-odotus” is more of an (attractive) promise than a strict expected value.
By dispersion, I mean dispersion. The question is actually whether you mean a smaller risk by it.
I would understand “tuottovaatimus” (required return) through “tuotto-odotus”: “The return (expectation) on capital that is sufficient.”
Let’s imagine an example:
In a game, a die is rolled. Either a regular six-sided die or a special die with numbers 2, 3, and 4 in equal balance. Participation costs one euro, and you win a sum corresponding to the die roll.
Would you recommend investors play with the 2-3-4 die instead, because the dispersion is smaller, even though it wins less in the long run? Also, the ratio of expected value to dispersion is higher with this 2-3-4 die. That is, expected value 2, standard deviation 0.82 versus expected value 2.5, standard deviation 1.7.
There’s no need to get stuck on exact numbers here, because in reality, we only have some ballpark estimates. However, I’m trying to understand as well as possible what you are communicating with your recommendations in different situations.
So, no attempt to be snarky here, @Sauli_Vilen ![]()



