World Food Policy
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Ziv , Guy , Eric Baran , So Nam , Ignacio Rodriguez-Iturbe , and Simon A . Levin . 2012 . " Trading-off Fish Biodiversity , Food Security , and Hydropower in the Mekong River Basin ." Proceedings of the National Academy of Sciences 109 ( 15 ): 5609 – 5614 .
Appendix A
Construction of the Food Security Indicators used
The Food Consumption Score
The construction of the food consumption score ( FCS ) is based on the technical report on the FCS issued by the World Food Programme ( 2008 ). For its construction food groups are formed and days of consumption per food group are counted at household level . The food groups are ( weights within parentheses ): main staples ( 2 ), pulses ( 3 ), vegetables ( 1 ), fruit ( 1 ), meat , fish and eggs ( 4 ), milk ( 4 ), sugar ( 0.5 ), oil ( 0.5 ), and condiments ( 0 ). According to their nutritious value the quantities per food group are weighted to calculate the FCS of household i as follows :
FFFFFF ii =
99
gg ! 11 ff gg ∗ ww gg ( 1 )
Where f g represents food group g and w g is its respective weight . We use the FCS as a constant score in our analysis instead of grouping households into food security groups according to the FCS . The reason for this is that we want to focus on the general improvement of the absolute nutrition situation in a household due to fishing which is captured by the total FCS rather than wanting to judge who is food secure and who is not according to a predefined cut-off point .
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