Israel’s Wasteless (see here previously) uses variable pricing to reduce the amount of supermarket food that is thrown away. Wasteless has just partnered Germany’s NX-Food, which operates the METRO stores chain. METRO’s first implementation will be at its Makro subsidiary in Poland.

https://jewishbusinessnews.com/2021/05/10/israels-wasteless-partners-with-germanys-nx-food-on-food-waste-reduction-in-eu/

https://www.youtube.com/watch?v=lP7LXYnXgqA (BBC radio 4 Positive Idea 2020 winner).