What two types of costs must be differentiated when evaluating the Starship program expenditure?

Answer

Sunk cost and marginal cost

When assessing the program's total expenditure, it is necessary to separate the sunk cost, which covers billions spent on R&D to perfect the technology, from the marginal cost, which is the cost of producing and launching a flight-ready vehicle after the design matures.

What two types of costs must be differentiated when evaluating the Starship program expenditure?

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