The theoretical cross-price elasticity of demand of product j with respect to price of product к is
then
Дуй
_ ∂sj pk _ Pk 1 ]_ ∙^-'∙ ∂Pjj∖
∂pk Sj Sj ∖N 2-^i=ι ∂pk J
_ pk (N ∑i=ι (/ aibijt(ai)Likt(ai)f (ai)⅛))
which can be simulated using
sEjk _ pk N ∑*=ι (⅛ ∑<∙=ι a^(аг)цы(аг))
Similarly, the theoretical own price elasticity is
E∙ ∙
Ejj
dsj p±
∂pj sj
pj A 1 ∖^'' dPij ʌ
Sj ∖N z-^≈=∣ ∂pj )
s. Nn ^ ʌ; 1 ʃ aiLijt{ai) (1 Lijt{ai)') f (щ^а^^
which is simulated using
sEjj _ -pΓ [N ∑Γ 1 (⅛ Σ^ 1 arLijt(ar) (1 - Ll3t(a)))
Sj IN ^— 1∖^-ZL > —1 J
41
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