dynare/matlab/steady.m

106 lines
3.1 KiB
Matlab

function steady()
% function steady()
% computes and prints the steady state calculations
%
% INPUTS
% none
%
% OUTPUTS
% none
%
% SPECIAL REQUIREMENTS
% none
% Copyright (C) 2001-2019 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/>.
global M_ oo_ options_
test_for_deep_parameters_calibration(M_);
if options_.steadystate_flag && options_.homotopy_mode
error('STEADY: Can''t use homotopy when providing a steady state external file');
end
% Keep of a copy of M_.Sigma_e
Sigma_e = M_.Sigma_e;
% Set M_.Sigma_e=0 (we compute the *deterministic* steady state)
M_.Sigma_e(:,:) = 0;
info = 0;
switch options_.homotopy_mode
case 1
[M_,oo_,info,ip,ix,ixd] = homotopy1(options_.homotopy_values,options_.homotopy_steps,M_,options_,oo_);
case 2
homotopy2(options_.homotopy_values, options_.homotopy_steps);
case 3
[M_,oo_,info,ip,ix,ixd] = homotopy3(options_.homotopy_values,options_.homotopy_steps,M_,options_,oo_);
end
if info(1)
hv = options_.homotopy_values;
skipline()
disp('WARNING: homotopy step was not completed')
disp('The last values for which a solution was found are:')
for i=1:length(ip)
fprintf('%12s %12.6f\n',char(M_.param_names(hv(ip(i),2))), ...
M_.params(hv(ip(i),2)))
end
for i=1:length(ix)
fprintf('%12s %12.6f\n',char(M_.exo_names(hv(ix(i),2))), ...
oo_.exo_steady_state(hv(ix(i),2)))
end
for i=1:length(ixd)
fprintf('%12s %12.6f\n',char(M_.exo_det_names(hv(ixd(i),2))), ...
oo_.exo_det_steady_state(hv(ixd(i),2)))
end
if options_.homotopy_force_continue
disp('Option homotopy_continue is set, so I continue ...')
else
error('Homotopy step failed')
end
end
[oo_.steady_state,M_.params,info] = steady_(M_,options_,oo_);
if info(1) == 0
if ~options_.noprint
disp_steady_state(M_,oo_);
end
else
if ~options_.noprint
if ~isempty(oo_.steady_state)
resid;
else
skipline()
disp('Residuals of the static equations cannot be computed because the steady state routine returned an empty vector.')
skipline()
end
end
if options_.debug
fprintf('\nThe steady state computation failed. It terminated with the following values:\n')
for i=1:M_.orig_endo_nbr
fprintf('%s \t\t %g\n', M_.endo_names{i}, oo_.steady_state(i));
end
end
print_info(info,options_.noprint, options_);
end
M_.Sigma_e = Sigma_e;