45 lines
968 B
Modula-2
45 lines
968 B
Modula-2
// Uses autonomous system from sim_base.mod, but adds separate system where exogenous variables have several leads and lags
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// Lags and leads on exogenous variables are substituted out by auxiliary variables
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var c cmav k z_backward z_forward;
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varexo x;
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parameters alph gam delt bet aa;
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alph=0.5;
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gam=0.5;
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delt=0.02;
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bet=0.05;
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aa=0.5;
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model;
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c + k - aa*x*k(-1)^alph - (1-delt)*k(-1);
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c^(-gam) - (1+bet)^(-1)*(aa*alph*x(+1)*k^(alph-1) + 1 - delt)*c(+1)^(-gam);
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z_backward=0.1*1+0.9*z_backward(-1) + (x(-4) - 1);
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z_forward=0.2*1+0.8*z_forward(+1) + (x(+4) - 1);
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cmav = 0.2*(c(-2) + c(-1) + c + c(+1) + c(+2));
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end;
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initval;
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c = 1.2;
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cmav = 1.2;
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k = 12;
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x = 1; //set x(0), x(-1), x(-2), x(-3)
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z_backward = 1;
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z_forward = 1;
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end;
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shocks;
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var x; //sets x(+2)
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periods 2;
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values 0.9;
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end;
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perfect_foresight_setup(periods=200);
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perfect_foresight_solver;
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if ~oo_.deterministic_simulation.status
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error('Perfect foresight simulation failed')
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end
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