You forgot to include the economic cost to production that occurs when a bicycle courier ends up beneath an SUV. This delays delivery from the SUV, unnecessari

You forgot to include the economic cost to production that occurs when a bicycle courier ends up beneath an SUV. This delays delivery from the SUV, unnecessarily uses up emergency services, and moves delivery onto other, inefficient bicycle couriers who have to take up the slack while the original spends 6 months in hopstial.