Still, given the large number of variables affecting future agriculture productivity, including irrigation efficiency, crop shifting, improvements in crop yields, variability in global markets, and demand generally, it is extremely difficult to project the possible economic impacts of long-term drought and water reallocations beyond the region. The objective of the simulations is to assess the possible national and international market effects such risks might have in the future. These four scenarios (SO, SB, SG, SD) are then combined with the introduction of two global climate change simulations using regional climate projections RCP 8.5 IPSL SI and Hadley SI.