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Reforma fiscal y bienestar en la economía de México

Reforma fiscal y bienestar en la economía de México

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184 Gómez: <strong>Reforma</strong> <strong>fiscal</strong> y <strong>bi<strong>en</strong>estar</strong> <strong>en</strong> <strong>la</strong> <strong>economía</strong> <strong>de</strong> <strong>México</strong>∂J ∂C= U ( C,L)− (1 + τ ) λ 0 , (A2a)1 C=∂J∂L= U( C,L)− λ(1− τH) RHH 0 , (A2b)2=∂J ∂I= −λ + µ = 0 , (A2c)K∂J–∂z= − λ( 1 − τH ) RHH + φG2 ( y,zH,H)H = 0 , (A2d)∂J–∂y= −λ(( 1 − τH ) ξ + (1 − ξ)(1− sy))+ φG1 ( y,zH,H)= 0 , (A2e).µ = ( ρ + δ ) µ − λ(1− τ ) R , (A2f)KKK.–φ = ( ρ + δ − G2(y,zH,H)z)φ − λ(1− L − z)(1− τ ) R , (A2g)Hy <strong>la</strong>s condiciones <strong>de</strong> transversalidad−ρlim e tµ K = 0 , (A2h)t →∞HH−ρlim e tφH= 0 . (A2i)t →∞Aquí, U i (C,L) (i = 1,2) es <strong>la</strong> <strong>de</strong>rivada parcial <strong>de</strong> U(C,L) con respectoa su i-ésimo argum<strong>en</strong>to.Empleando (A1), (A2a) y (A2b), se obti<strong>en</strong>eη ( 1 + τH)−ααC) C H = (1 − τH)A(1− α)Lu ( K . (A3)Combinando <strong>la</strong>s ecuaciones (A2d) y (A2e), resulta−αα( 1 − τ )(1 − α)βAzu( K H)= θ((1− τ ) ξ + (1 − s )(1 − ξ))(y H). (A4)H.Supongamos que γx= x x d<strong>en</strong>ota <strong>la</strong> tasa <strong>de</strong> crecimi<strong>en</strong>to <strong>de</strong> <strong>la</strong> variablex. Tomando logaritmos y difer<strong>en</strong>ciando (A2a) con respecto alHy

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