dynare/matlab/annualized_shock_decomposit...

334 lines
12 KiB
Matlab

function [z, endo_names, endo_names_tex, steady_state, i_var, oo_] = annualized_shock_decomposition(oo_, M_, options_, i_var, t0, t1, realtime_, vintage_, steady_state, q2a, cumfix)
% function oo_ = annualized_shock_decomposition(oo_,t0,options_.nobs);
% Computes annualized shocks contribution to a simulated trajectory. The fields set are
% oo_.annualized_shock_decomposition, oo_.annualized_realtime_shock_decomposition,
% oo_.annualized_realtime_conditional_shock_decomposition and oo_.annualized_realtime_forecast_shock_decomposition.
% Subfields are arrays n_var by nshock+2 by nperiods. The
% first nshock columns store the respective shock contributions, column n+1
% stores the role of the initial conditions, while column n+2 stores the
% value of the smoothed variables. Both the variables and shocks are stored
% in the order of endo_names and M_.exo_names, respectively.
%
% INPUTS
% oo_: [structure] Storage of results
% M_: [structure] Storage of model
% opts: [structure] options for shock decomp
% i_var: [array] index of vars
% t0: [integer] first period
% t1: [integer] last period
% realtime_: [integer]
% vintage_: [integer]
% steady_state: [array] steady state value of quarterly (log-) level vars
% q2a: [structure] info on q2a
%
% OUTPUTS
% z: [matrix] shock decomp to plot
% endo_names: [char] updated var names
% endo_names_tex: [char] updated TeX var names
% steady_state: [array] updated stady state of vars
% i_var: [integer array] updated var indices to plot
% oo_: [structure] Storage of results
%
% SPECIAL REQUIREMENTS
% none
% Copyright (C) 2018 Dynare Team
%
% This file is part of Dynare.
%
% Dynare is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% Dynare is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with Dynare. If not, see <http://www.gnu.org/licenses/>.
opts = options_.plot_shock_decomp;
nvar = length(i_var);
GYTREND0 = q2a.GYTREND0;
var_type = q2a.type;
islog = q2a.islog;
aux = q2a.aux;
aux0 = aux;
cumfix = q2a.cumfix;
% usual shock decomp
if isstruct(oo_)
% z = oo_.shock_decomposition;
myopts=options_;
myopts.plot_shock_decomp.type='qoq';
myopts.plot_shock_decomp.realtime=0;
[z, junk] = plot_shock_decomposition(M_,oo_,myopts,[]);
else
z = oo_;
end
z = z(i_var,:,:);
mytype=var_type;
if isfield(q2a,'name')
mytxt = q2a.name;
mytex = q2a.name;
if isfield(q2a,'tex_name')
mytex = q2a.tex_name;
end
if mytype==2
gtxt = ['PHI' mytxt]; % inflation rate
gtex = ['{\pi(' mytex ')}'];
elseif mytype
gtxt = ['G' mytxt]; % inflation rate
gtex = ['{g(' mytex ')}'];
end
if isfield(q2a,'gname')
gtxt = q2a.gname;
end
if isfield(q2a,'tex_gname')
gtex = q2a.tex_gname;
end
mytype=0;
end
if isstruct(aux)
if ischar(aux.y)
myopts=options_;
myopts.plot_shock_decomp.type='qoq';
myopts.plot_shock_decomp.realtime=0;
[y_aux, steady_state_aux] = plot_shock_decomposition(M_,oo_,myopts,aux.y);
aux.y=y_aux;
aux.yss=steady_state_aux;
end
yaux=aux.y;
end
if mytype==2
gtxt = 'PHI'; % inflation rate
gtex = '\pi';
elseif mytype
gtxt = 'G'; % growth rate
gtex = 'g';
end
steady_state=steady_state(i_var);
nterms = size(z,2);
nfrcst = opts.forecast/4;
for j=1:nvar
if j>1
endo_names = char(endo_names, sprintf('%s_A', M_.endo_names{i_var(j)}));
endo_names_tex = char(endo_names_tex, sprintf('{%s}^A', M_.endo_names_tex{i_var(j)}));
gendo_names = char(gendo_names,[gtxt endo_names{j}]);
gendo_names_tex = char(gendo_names_tex,[gtex '(' endo_names_tex{j} ')']);
else
if nvar==1 && ~mytype
endo_names = mytxt;
endo_names_tex = mytex;
gendo_names = gtxt;
gendo_names_tex = gtex;
else
endo_names = sprintf('%s_A', M_.endo_names{i_var(j)});
endo_names_tex = sprintf('{%s}^A', M_.endo_names_tex{i_var(j)});
gendo_names = [gtxt endo_names{j}];
gendo_names_tex = [gtex '(' endo_names_tex{j} ')'];
end
end
for k =1:nterms
if isstruct(aux)
aux.y = squeeze(yaux(j,k,min((t0-3):-4:1):end));
end
[za(j,k,:), steady_state_a(j,1), gza(j,k,:), steady_state_ga(j,1)] = ...
quarterly2annual(squeeze(z(j,k,min((t0-3):-4:1):end)),steady_state(j),GYTREND0,var_type,islog,aux);
end
ztmp=squeeze(za(j,:,:));
if cumfix==0
zscale = sum(ztmp(1:end-1,:))./ztmp(end,:);
ztmp(1:end-1,:) = ztmp(1:end-1,:)./repmat(zscale,[nterms-1,1]);
else
zres = ztmp(end,:)-sum(ztmp(1:end-1,:));
ztmp(end-1,:) = ztmp(end-1,:) + zres;
end
gztmp=squeeze(gza(j,:,:));
if cumfix==0
gscale = sum(gztmp(1:end-1,:))./ gztmp(end,:);
gztmp(1:end-1,:) = gztmp(1:end-1,:)./repmat(gscale,[nterms-1,1]);
else
gres = gztmp(end,:) - sum(gztmp(1:end-1,:));
gztmp(end-1,:) = gztmp(end-1,:)+gres;
end
za(j,:,:) = ztmp;
gza(j,:,:) = gztmp;
end
if q2a.plot ==1
z=gza;
endo_names = gendo_names;
endo_names_tex = gendo_names_tex;
elseif q2a.plot == 2
z=za;
else
z=cat(1,za,gza);
endo_names = char(endo_names,gendo_names);
endo_names_tex = char(endo_names_tex,gendo_names_tex);
end
% if isstruct(oo_)
% oo_.annualized_shock_decomposition=z;
% end
% realtime
if realtime_ && isstruct(oo_) && isfield(oo_, 'realtime_shock_decomposition')
init=1;
for i=t0:4:t1
yr=floor(i/4);
za=[];
gza=[];
myopts=options_;
myopts.plot_shock_decomp.type='qoq';
myopts.plot_shock_decomp.realtime=1;
myopts.plot_shock_decomp.vintage=i;
[z, steady_state_aux] = plot_shock_decomposition(M_,oo_,myopts,[]);
z = z(i_var,:,:);
if isstruct(aux)
if ischar(aux0.y)
[y_aux, steady_state_aux] = plot_shock_decomposition(M_,oo_,myopts,aux0.y);
aux.y=y_aux;
aux.yss=steady_state_aux;
end
yaux=aux.y;
end
nterms = size(z,2);
% z = oo_.realtime_shock_decomposition.(['time_' int2str(i)]);
% z = z(i_var,:,:);
for j=1:nvar
for k =nterms:-1:1
% if k<nterms
% ztmp = squeeze(sum(z(j,[1:k-1,k+1:end-1],t0-4:end)));
% else
ztmp = squeeze(z(j,k,min((t0-3):-4:1):end));
% end
if isstruct(aux)
aux.y = squeeze(yaux(j,k,min((t0-3):-4:1):end));
end
[za(j,k,:), steady_state_a(j,1), gza(j,k,:), steady_state_ga(j,1)] = ...
quarterly2annual(ztmp,steady_state(j),GYTREND0,var_type,islog,aux);
% if k<nterms
% za(j,k,:) = za(j,end,:) - za(j,k,:);
% gza(j,k,:) = gza(j,end,:) - gza(j,k,:);
% end
end
ztmp=squeeze(za(j,:,:));
if cumfix==0
zscale = sum(ztmp(1:end-1,:))./ztmp(end,:);
ztmp(1:end-1,:) = ztmp(1:end-1,:)./repmat(zscale,[nterms-1,1]);
else
zres = ztmp(end,:)-sum(ztmp(1:end-1,:));
ztmp(end-1,:) = ztmp(end-1,:) + zres;
end
gztmp=squeeze(gza(j,:,:));
if cumfix==0
gscale = sum(gztmp(1:end-1,:))./ gztmp(end,:);
gztmp(1:end-1,:) = gztmp(1:end-1,:)./repmat(gscale,[nterms-1,1]);
else
gres = gztmp(end,:) - sum(gztmp(1:end-1,:));
gztmp(end-1,:) = gztmp(end-1,:)+gres;
end
za(j,:,:) = ztmp;
gza(j,:,:) = gztmp;
end
if q2a.plot ==1
z=gza;
elseif q2a.plot == 2
z=za;
else
z=cat(1,za,gza);
end
if init==1
oo_.annualized_realtime_shock_decomposition.pool = z;
else
oo_.annualized_realtime_shock_decomposition.pool(:,:,yr) = z(:,:,end-nfrcst);
end
oo_.annualized_realtime_shock_decomposition.(['yr_' int2str(yr)]) = z;
if opts.forecast
oo_.annualized_realtime_forecast_shock_decomposition.(['yr_' int2str(yr)]) = z(:,:,end-nfrcst:end);
if init>nfrcst
oo_.annualized_realtime_conditional_shock_decomposition.(['yr_' int2str(yr-nfrcst)]) = ...
oo_.annualized_realtime_shock_decomposition.pool(:,:,yr-nfrcst:end) - ...
oo_.annualized_realtime_forecast_shock_decomposition.(['yr_' int2str(yr-nfrcst)]);
% fix others
oo_.annualized_realtime_conditional_shock_decomposition.(['yr_' int2str(yr-nfrcst)])(:,end-1,:) = ...
oo_.annualized_realtime_conditional_shock_decomposition.(['yr_' int2str(yr-nfrcst)])(:,end-1,:) + ...
oo_.annualized_realtime_forecast_shock_decomposition.(['yr_' int2str(yr-nfrcst)])(:,end,:);
% fix total
oo_.annualized_realtime_conditional_shock_decomposition.(['yr_' int2str(yr-nfrcst)])(:,end,:) = ...
oo_.annualized_realtime_shock_decomposition.pool(:,end,yr-nfrcst:end);
if i==t1
for my_forecast_=(nfrcst-1):-1:1
oo_.annualized_realtime_conditional_shock_decomposition.(['yr_' int2str(yr-my_forecast_)]) = ...
oo_.annualized_realtime_shock_decomposition.pool(:,:,yr-my_forecast_:yr) - ...
oo_.annualized_realtime_forecast_shock_decomposition.(['yr_' int2str(yr-my_forecast_)])(:,:,1:my_forecast_+1);
oo_.annualized_realtime_conditional_shock_decomposition.(['yr_' int2str(yr-my_forecast_)])(:,end-1,:) = ...
oo_.annualized_realtime_forecast_shock_decomposition.(['yr_' int2str(yr-my_forecast_)])(:,end,1:my_forecast_+1);
oo_.annualized_realtime_conditional_shock_decomposition.(['yr_' int2str(yr-my_forecast_)])(:,end,:) = ...
oo_.annualized_realtime_shock_decomposition.pool(:,end,yr-my_forecast_:yr);
end
end
end
end
% ztmp=oo_.realtime_shock_decomposition.pool(:,:,21:29)-oo_.realtime_forecast_shock_decomposition.time_21;
init=init+1;
end
switch realtime_
case 0
z = oo_.annualized_shock_decomposition;
case 1 % realtime
if vintage_
z = oo_.annualized_realtime_shock_decomposition.(['yr_' int2str(floor(vintage_/4))]);
else
z = oo_.annualized_realtime_shock_decomposition.pool;
end
case 2 % conditional
if vintage_
z = oo_.annualized_realtime_conditional_shock_decomposition.(['yr_' int2str(floor(vintage_/4))]);
else
error();
end
case 3 % forecast
if vintage_
z = oo_.annualized_realtime_forecast_shock_decomposition.(['yr_' int2str(floor(vintage_/4))]);
else
error()
end
end
end
if q2a.plot ==0
i_var=1:2*nvar;
steady_state = [steady_state_a;steady_state_ga];
else
i_var=1:nvar;
if q2a.plot ==1
steady_state = steady_state_ga;
else
steady_state = steady_state_a;
end
end
endo_names = cellstr(endo_names);
endo_names_tex = cellstr(endo_names_tex);