The costs of making the sequels to a hit movie $($e$.$g$.,$ Fast X as the sequel to Fast & Furious $9$: The Fast Saga$)$ can be reduced by as much as $25$ percent, because settings, costumes, equipment, and the like can be reused from the previous instalments. This illustrates the concept of

Group of answer choices

economy of scope

economy of scale

brand equity

vertical integration