Option Premium The price you pay upfront for the right to adjust later — like paying extra for a refundable plane ticket.
NPV / Net Present Value A traditional way to evaluate investments by converting all future cash flows into today's dollars. It treats uncertainty as fixed, which is why it undervalues flexibility.
Hedging Protecting yourself against a bad outcome — like buying insurance. A switch option hedges against a single supplier failing or prices spiking in one region.
Spot Market Buying at whatever the current market price is, with no contract. A flexible contract gives you better-than-spot prices when you need extra volume urgently.
Take-or-Pay A clause requiring you to buy a minimum volume or pay a penalty anyway. This is a contract option in reverse — and the penalty is the option premium.
Force Majeure An escape clause for disasters (wars, natural catastrophes). Real options are for everyday uncertainty — demand shifts, price moves, regulatory changes — not just catastrophes.