Answer:
scarcity factor
Explanation:
According to my research on the strategic contingency model, I can say that based on the information provided within the question this scenario is an example of the scarcity factor. This is because since they have a firm in Mexico they need someone with experience in the firm that speaks fluent Spanish. Since Mark is the only one, then this factor is very scarce in the company, which is why he is extremely valuable to the firm.
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