# Questions tagged [discount]

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### Supermarket selling seasonal items below cost?

In a British supermarket, I saw the prices of Christmas chocolate gift boxes being cut dramatically (£1.50 to £0.15, and £7.50 to £0.22). I don't quite understand this behaviour, where the chocolate ...
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### Why do game theorists use a discounted payoff of this form?

Excuse the click-baity title. I notice the discounted payoff in the game theory literature usually takes the form $$\sum_{t=1}^\infty\lambda(1-\lambda)^{t-1}R_t$$ This differs from the discounted ...
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### discount function with logarithm

I have a function f(x) in which there is log function $f(x)=log(1+ax)-bxg(x)$ I need a discount function g(x) with which the function f(x) is concave and the value of x is not too complex. I ...
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### Continuum limit of a weighted mean of heterogeneous discount factors

I try to find the limit of the following expression of a weighted mean of a series of discount rate $\rho_{i}$ Here is the expression ; \rho_{\eta}\left(t\right)=\frac{\sum_{i}^{N}\rho_{i}\left(\...