56 lines
1.9 KiB
Modula-2
56 lines
1.9 KiB
Modula-2
var y y_s R pie dq pie_s de A y_obs pie_obs R_obs;
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varexo e_R e_q e_ys e_pies e_A;
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parameters psi1 psi2 psi3 rho_R tau alpha rr k rho_q rho_A rho_ys rho_pies;
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psi1 = 1.54;
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psi2 = 0.25;
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psi3 = 0.25;
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rho_R = 0.5;
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alpha = 0.3;
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rr = 2.51;
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k = 0.5;
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tau = 0.5;
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rho_q = 0.4;
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rho_A = 0.2;
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rho_ys = 0.9;
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rho_pies = 0.7;
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// GP extended to see effect of 2 lags and 2 leads
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model(linear);
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//y = y(+1) - (tau +alpha*(2-alpha)*(1-tau))*(R-pie(+1))-alpha*(tau +alpha*(2-alpha)*(1-tau))*dq(+1) + alpha*(2-alpha)*((1-tau)/tau)*(y_s-y_s(+1))-A(+1);
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y = 0.3*y +0.3*y(-1) +0.3*y(-2)-(tau +alpha*(2-alpha)*(1-tau))*(R-pie)-alpha*(tau +alpha*(2-alpha)*(1-tau))*dq + alpha*(2-alpha)*((1-tau)/tau)*(y_s(11)-y_s)-A;
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//y = 0.3*y(+2)+0.3*y(+1)+0.3*y(-2) - (tau +alpha*(2-alpha)*(1-tau))*(R-pie(+1))-alpha*(tau +alpha*(2-alpha)*(1-tau))*dq(+1) + alpha*(2-alpha)*((1-tau)/tau)*(y_s-y_s(+1))-A(+1);
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//pie = exp(-rr/400)*pie(+1)+alpha*exp(-rr/400)*dq(+1)-alpha*dq+(k/(tau+alpha*(2-alpha)*(1-tau)))*y+alpha*(2-alpha)*(1-tau)/(tau*(tau+alpha*(2-alpha)*(1-tau)))*y_s;
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pie = exp(-rr/400)*pie(-1)+alpha*exp(-rr/400)*dq-alpha*dq(-1)+(k/(tau+alpha*(2-alpha)*(1-tau)))*y+alpha*(2-alpha)*(1-tau)/(tau*(tau+alpha*(2-alpha)*(1-tau)))*y_s;
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pie = de+(1-alpha)*dq+pie_s;
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R = rho_R*R(-1)+(1-rho_R)*(psi1*pie+psi2*(y+alpha*(2-alpha)*((1-tau)/tau)*y_s)+psi3*de)+e_R;
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dq = rho_q*dq(-1)+e_q;
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y_s = rho_ys*y_s(-1)+e_ys;
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//pie_s = rho_pies*pie_s(-1)+e_pies;
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pie_s = rho_pies*pie_s(-1)+(1-rho_pies)*pie_s(-2)+e_pies;
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A = rho_A*A(-1)+e_A;
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y_obs = y-y(-1)+A;
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pie_obs = 4*pie;
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R_obs = 4*R;
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end;
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shocks;
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var e_R = 1.25^2;
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var e_q = 2.5^2;
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var e_A = 1.89;
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var e_ys = 1.89;
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var e_pies = 1.89;
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end;
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stoch_simul(aim_solver, order=1,irf=0);
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benchmark = load(['ls2003_2L0L' filesep 'Output' filesep 'ls2003_2L0L_results']);
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threshold = 1e-8;
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if max(max(abs(benchmark.oo_.dr.ghx-oo_.dr.ghx) > threshold));
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error('error in ghx');
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elseif max(max(abs(benchmark.oo_.dr.ghu-oo_.dr.ghu) > threshold));
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error('error in ghy');
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end;
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