... indicates that the respective variable has a positiveinfluence on efficiency.bIncludes South Africa, Lesotho, Mozambique, Zimbabwe, Tanzania, Zambia,Malawi, Angola, Namibia, Botswana, and Swaziland.cIncludes ... a few ofthese factors are available as spatially explicit global datasets.Therefore, proxies of these factors for which global datasets areavailable were used instead as determinants of land ... we analyze to what extent the available spatially explicit glo-bal biophysical and land management-related data are able to explain the yield gap of global grain pro-duction. We combined an...