Value Of Prostitution

こんなの見つけちまったよ。

[(δU/δL) / (δU/δC) | Sp=0] ≤ w - [(δU/δr) / (δU/δC) | S = 0]
U is your satisfaction. It's what you, as a prostitute, care about - the satisfaction you gain from selling your services. Economists like to call it "utility", which is why they like to use the letter "U".
L is the amount of leisure you have.
C is the amount of goods and services you, as a consumer, consume.
S is the amount of prostitution you, as a prostitute, sell to your customers.
W is the going price for prostitutes.
R is a measure of your reputation.
Out of the equation - Guardian Unlimited via Table of Malcontents

数式よく分かんね。「|」ってどういう意味だっけ? でも、要するに以下のようなことらしい。

That's the poetic, simple way of putting it. But prostitution is by tradition considered vulgar, so the team also gives a vulgar, all-words description: "An individual will start to sell prostitution if the price for selling the first amount of prostitution, minus the costs of a worsened reputation for doing so, exceeds the shadow price of leisure evaluated at zero prostitution sold."
Out of the equation - Guardian Unlimited via Table of Malcontents