The Physical Economy: A Field Guide › Chapter 5
Freight economics reward anyone who can price risk better than the next party. A working map of the money:
Shippers buy most capacity through contract rates — annual (increasingly shorter) agreements with carriers at fixed lane prices, procured through bid events called RFPs. The spot market prices everything that falls outside contracts: surges, failures, odd lanes. The two markets arbitrage each other with a lag: when spot rises above contract, carriers quietly reject contracted freight to chase spot (tender rejection rates are the market's fear gauge); when spot collapses, shippers re-bid contracts down. If you're from finance: contract is the forward curve, spot is the cash market, tender rejection is the basis blowing out.
Accessorial charges are everything beyond the linehaul: detention (waiting), layover, redelivery, driver assist, lumper fees (third-party unloading crews, a racket unto itself), liftgate, and so on. Detention alone touches roughly 39% of truckload stops. Two facts make accessorials strategic for us. First, they are the most disputed money in freight, because they hinge on facts nobody recorded — exactly when did the driver arrive and leave? Second, facilities that cause detention become facilities of last resort: carriers price them up or quietly refuse them. A dock with clean, timestamped records pays less for freight. That's not a software benefit; it's a freight-rate benefit, and it's how a $500/month product justifies itself at industrial scale.
Carriers get paid in 30–45 days but buy diesel today, so a whole shadow-banking layer — factoring — advances them 95–98 cents on the dollar against invoices. Payment flows are slow, fraud-prone, and heavily intermediated. (This is why our long-term marketplace design uses modern escrowed rails — and why that same design triggers regulatory questions we take seriously.)
Nobody in the chain is fat. Carriers run low-single-digit operating margins in bad years; brokers' mid-teens gross margins shrink when markets tighten; 3PL warehousing runs on labor arbitrage and utilization. The practical consequence for a software vendor: price against a documented cost you remove (detention, idle labor, a stolen load, a lost customer), never against "digital transformation." An unscheduled truck costs a facility $200–800 in cascading waste. That's the unit of value we sell against.
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