specify_identification_bsvarSIGN {bsvarSIGNs} | R Documentation |
R6 Class Representing IdentificationBSVARSIGN
Description
The class IdentificationBSVARSIGN presents the identifying restrictions for the Bayesian Structural VAR models with sign and narrative restrictions.
Public fields
VB
a list of
N
matrices determining the unrestricted elements of matrixB
.sign_irf
a
NxNxH
array of sign restrictions on the impulse response functions.sign_narrative
a
ANYx6
matrix of narrative sign restrictions.sign_structural
a
NxN
matrix of sign restrictions on contemporaneous relations.max_tries
a positive integer with the maximum number of iterations for finding a rotation matrix
Q
that would satisfy sign restrictions.
Methods
Public methods
Method new()
Create new identifying restrictions IdentificationBSVARSIGN.
Usage
specify_identification_bsvarSIGN$new( N, sign_irf, sign_narrative, sign_structural, max_tries = Inf )
Arguments
N
a positive integer - the number of dependent variables in the model.
sign_irf
a
NxNxH
array - sign and zero restrictions on the impulse response functions, ±1 for positive/negative sign restriction 0 for zero restrictions and NA for no restrictions, theh
-th sliceNxN
matrix contains the restrictions on theh-1
horizon.sign_narrative
a list of objects of class "narrative" - narrative sign restrictions.
sign_structural
a
NxN
matrix with entries ±1 or NA - sign restrictions on the contemporaneous relationsB
between reduced-form errorsE
and structural shocksU
whereBE=U
.max_tries
a positive integer with the maximum number of iterations for finding a rotation matrix
Q
that would satisfy sign restrictions.
Returns
Identifying restrictions IdentificationBSVARSIGN.
Method get_identification()
Returns the elements of the identification pattern IdentificationBSVARSIGN as a list
.
Usage
specify_identification_bsvarSIGN$get_identification()
Method set_identification()
Set new starting values StartingValuesBSVARSIGN.
Usage
specify_identification_bsvarSIGN$set_identification( N, sign_irf, sign_narrative, sign_structural )
Arguments
N
a positive integer - the number of dependent variables in the model.
sign_irf
a
NxNxH
array - sign and zero restrictions on the impulse response functions, ±1 for positive/negative sign restriction 0 for zero restrictions and NA for no restrictions, theh
-th sliceNxN
matrix contains the restrictions on theh-1
horizon.sign_narrative
a list of objects of class "narrative" - narrative sign restrictions.
sign_structural
a
NxN
matrix with entries ±1 or NA - sign restrictions on the contemporaneous relationsB
between reduced-form errorsE
and structural shocksU
whereBE=U
.max_tries
a positive integer with the maximum number of iterations for finding a rotation matrix
Q
that would satisfy sign restrictions
Method clone()
The objects of this class are cloneable with this method.
Usage
specify_identification_bsvarSIGN$clone(deep = FALSE)
Arguments
deep
Whether to make a deep clone.
Examples
# recursive specification for a 5-variable system
specify_identification_bsvarSIGN$new(N = 5)
# specify sign restrictions of the first shock on the contemporaneous IRF
# + no effect on the first variable
# + positive effect on the second variable
sign_irf = matrix(c(0, 1, rep(NA, 23)), 5, 5)
specify_identification_bsvarSIGN$new(N = 5, sign_irf = sign_irf)