a1 * Yd + alpha2 * H_h[-1] FALSE  ""                 </span></span>
<span><span class="co">##  8 H_s = G_d - T_d + H_s[-1]            FALSE  ""                 </span></span>
<span><span class="co">##  9 H_h = Yd - C_d + H_h[-1]             FALSE  ""                 </span></span>
<span><span class="co">## 10 Y = C_s + G_s                        FALSE  ""                 </span></span>
<span><span class="co">## 11 N_d = Y/W                            FALSE  ""                 </span></span>
<span><span clas