ch1989 - プログラム倉庫

import java.awt.*;
import java.awt.event.*;
class dsge05 extends Frame {
    public static void main(String [] args) {
        Frame f=new dsge05();
        f.setTitle("Christiano(1989)");
        f.setSize(700,700);
        f.setBackground(Color.yellow);
        f.setVisible(true);
    }

dsge05(){addWindowListener(new stopwin());}
class stopwin extends WindowAdapter{
    public void windowClosing(WindowEvent we){System.exit(0);}
    }

public void paint(Graphics g){
double maxc,minc,maxk,mink;
double ct[]=new double[101];  
int cp[]=new int[101];
double a,beta;
double ks;
double h;
double th[]=new double[11];
double k[]=new double[101];
double cx[][]=new double[11][101];
double cxs[][]=new double[11][101];
double k1;
double n1;
int n2,n3;
int n;
double c1,r1;
double ep;  
int t;
int m,mx;
double uc;  
for (m=1;m<11;m++){
th[m]=0.95+0.01*m;
}
a=0.33;
beta=0.95;
ks=Math.pow((1 / beta - 1) / a , 1 / (a - 1));
h=2*ks/100;
for (n=1;n<101;n++){
k[n]=n*h;
for (m=1;m<11;m++){  
cx[m][n]=th[m]*Math.pow(k[n],a);
}
}
t=0;
while(t<100){
for (m=1;m<11;m++){
for (n=10;n<91;n++){
k1=k[n]+th[m]*Math.pow(k[n],a)-cx[m][n];
n1=k1/h;
n2=(int)n1;
n3=n2+1;
uc=0;
for (mx=1;mx<11;mx++){
c1=cx[mx][n2]+(n1-n2)*(cx[mx][n3]-cx[mx][n2]);  
r1=th[mx]*a*Math.pow(k1,a-1);
uc=uc+(beta*(1+r1))/c1;
}
uc=0.1*uc;
cxs[m][n]=1/uc;  
}
}
ep=0;
for (m=1;m<11;m++){
for (n=10;n<91;n++){
ep=ep+Math.pow(cx[m][n]-cxs[m][n],2);
}
}
for (m=1;m<11;m++){
for (n=10;n<91;n++){
cx[m][n]=cxs[m][n];
}
}
if (ep<0.0001){
t=1000;
}
t=t+1;
}


k1=k[50];
for (t=1;t<100;t++){
m=(int)(10*Math.random())+1;
n1=k1/h;
n2=(int)n1;
n3=n2+1;
c1=cx[m][n2]+(n1-n2)*(cx[m][n3]-cx[m][n2]);
k1=k1+th[m]*Math.pow(k1,a)-c1;
ct[t]=c1;
}


maxc=-999;
for (t=1;t<100;t++){
if (ct[t]>maxc)maxc=ct[t];
}

minc=999;
for (t=1;t<100;t++){
if (ct[t]<minc)minc=ct[t];
}


for (t=1;t<100;t++){
cp[t]=(int)(500*(ct[t]-minc)/(maxc-minc));
}

g.setColor(Color.green);
g.drawString("消費",50,400);
g.drawString("期間",400,650);
g.setColor(Color.red);  
g.drawLine(100,100,100,600);
g.drawLine(100,600,600,600);  
g.setColor(Color.blue);
for (t=1;t<99;t++){
g.drawLine(100+5*t,600-cp[t],105+5*t,600-cp[t+1]);
}  


}
}