Regarding the assumptions on land prices we can be a bit more precise. Let us focus on costs
of direct land use, being the largest cost categories. Regarding the first question, note that we
have taken averages of land prices that were found in the literature and/or provided to us
through personal contact. For direct land use inside the built-up area the land prices varied
from 18 to 27 Euro (with an average of 23 Euro), which implies a possible variation of