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$by{l}_r=c{D}_r*{(1+AGTE{C}_r)}_{t-1}*KA{G}_r^{CDAL{F}_{r,s=1}}*LAB{S}_{r,s=1}^{{(1-CDALF}_{r,s=1)}}*SAT{K}_r$ <math>CD_{r}=YL_{r,t=1}/{KAG_{r,t=1}^CDALF_{r,s=1}*LABS_{r,s=1,t=1}^{{(1-CDALF_{r,s=1})}