lding/MRC Allocated CPE cost per building/MRC Allocated riser costs per building/MRC $1,600 Allocated network management costs per building/MRC Allocated SGA (= 18% of revenue) $1,260 $2,520 Allocated operations costs (= 17% of revenue) $1,190 $2,380 Total costs $6,676 $10,489 Practical Design and Economic Parameters Figure 10-19 Two 100-Mbps Customers/Building Allocated Ring Cost per Building/MRC Two 100-Mbps (12 buildings) customers per Allocated Spur Cost per Building/MRC building. Allocated CO Equip. Cost per Building/MRC Allocated CPE Cost per Building/MRC Allocated Riser Costs per Building/MRC Allocated Net. Manag. Costs per Building/MRC Allocated SGA (=18% of Revenue) Allocated Ops costs (=17% of Revenue) Figure 10-20 Four 100-Mbps Customers/Building Allocated Ring Cost per Building/MRC Four 100-Mbps (6 buildings) customers per Allocated Spur Cost per Building/MRC building. Allocated CO Equip. Cost per Building/MRC Allocated CPE Cost per Building/MRC Allocated Riser Costs per Building/MRC Allocated Net. Manag. Costs per Building/MRC Allocated SGA (=18% of Revenue) Allocated Ops costs (=17% of Revenue) to secure four customers might indeed require a lot of marketing, data min- ing, sales efforts, and SO on, raising the cost (in absolute, but not as a frac- tion). Third in line are building riser costs (the expense of wiring the building for the four customers), which is followed by spur costs in fourth place. Backbone ring costs are in fifth place. Again, interestingly, none of the hot buttons of the current technology developers address the largest four issues. This page intentionally left blank. APPENDIX A Revenue per Employee This appendix1 looks at revenue data for carriers reported for 2001 and computes a weighted average revenue per employee per year. To make the metric more meaningful, we recommend partitioning the carrier space into low end, midrange, and high end based on revenue. This data is collected from public sources, SO no guarantees of accuracy are implied. The purpose of the listing is to 