Which value chain activities $($marketing$,$ logistics$,$ design, human resource management, etc.$)$ make Zara competitive compared with major rivals in the industry segment?

What resources $($tangible and intangible$)$ and capabilities does Zara have that are valuable, rare, non$-$imitable, and nonsubstitutable?

How sustainable is Zara's core competency? Or$,$ how long$/$how easy does it take for Zara's competitors to duplicate or substitute Zara's resources and capabilities? $($Hint: intangible resources are harder to duplicate than tangible resources such as factories.$)$