r="#000100" size="2">for(k in 1 : K) { # loop over strata<br><br>
</font><font face="Arial" color="#000100" size="1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</font><font face="Arial" color="#000100" size="2"># Cost and benefit equations <br>
</font><font face="Arial" color="#000100" size="1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</font><font face="Arial" color="#000100" size="2">#######################<br><br>
</font><font face="Arial" color="#000100" size="1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</font><font f