The bank lending channel of monetary policy: identification and estimation using Portuguese micro bank data



γ0- β0

μo о ;

β3 -γ3


μι    n ;     μ2

β3 3
(-)

β1

β3 -γ3
(+)


(A1.7)


μ3=- /Л2 ;

β3 3

μ4γ- ;

β3 3
(+)

δ γ0β30γ3
0
=                  ;

β3 3


= β3γ1 ;
β3 3

(+)


δ2 =- β1γ3

2   β3 3

(+)


(A1.8)


δ    β2γ3

δ3 =-       ;

β3 -γ3


β3γ4

4=          ;

β3 -γ3

Similarly, from (A1.3)
market:


and (A1.4) we get the equilibrium solution for the credit

lt = φ о+Ψι ln( D / P ) t+φ 2 ln( D / P ) tzit+ φ 3 ln yt+φ ∏t+(a it


(-)


(+)


(+)


(?)     (+)


(A1.9)


ln(C/ P)t = Ρ0+ Pi ln(D/ P)t+ Ρ2 ln(D / P)tzit + Ρ3lnyt + P4πt + P5it


(+)


(-)


(+)     (-)   (?)


(A1.10)


where


α00

Ψ 0    ^         ;

λ3 3


α1

1 λ3- α3
(-)

α2

Φ 2 = ~Γ~^
λ
3- α3

(+)

(A1.11)


λ1

Φ3 =- .    .,

λ3- α3
(+)

α5- λ2

; φ4 = √---;

λ3 -α3

(?)

α4- λ4

<P 5 =

λ3- α3

(+)


40




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