In terms of products: I have modeled farms with the focus on grassland-production, mainly milk production but in one study also other types of animals (suckler cows, sheep, goats).
I am working mainly in Germany, Swiss and Austria, but we are planning to extend the analysis to other European countries - we did some first modeling attempts in DEA, but this is still work in progress.
In our qualitative Meta-Analysis, wich will come out in June in GJAE, we had an international view - however, most of the literature stems from Europe. I saw, you did something similar, so I am looking forward to compare both studies.