What is a fair price?

We are moving into an age where consumption is more sustainable as a natural consequence of collective awareness of ecological issues. This doesn’t means giving up on consumption. This means looking closer to the way we consume and the way we produce. Eco-responsible luxury that we defend fits with this vision of beauty at the right price. However, what makes a fair price? Everyone will agree that a fair price must be a reasonable price, profitable for each actor of the production and distribution chain. But what does this mean?