### Scarcity and Similarity indices
$$P(x)=\frac{K(x)}{n}\sum_{m=1}^{n}(1-Similarity(x,y_{m}))$$
> x: Resource
> P(x): Price. Depends on the resource x
> K(x): Arbitrary function to balance the equation
> n: Number of resources available
> Y: nth-resource

Selecting a good $$K(x)$$ can avoid speculation arround the resource price.