Final answer:
Resource heterogeneity is a concept that explains the difficulty for Apple's managers to pinpoint the exact causes of the company's success, highlighting the unique combination of resources and capabilities that are not easily replicable by competitors.
Step-by-step explanation:
The term that best applies to the difficulty even for Apple's managers to pinpoint the underlying cause of the company's phenomenal success is resource heterogeneity. The concept of resource heterogeneity suggests that resources (including labor, capital, and entrepreneurship) vary widely in their attributes and capabilities, which can lead to competitive advantages that are difficult to mimic. In the context of Apple, it implies that the unique combination of resources and capabilities within the company contributes to its success in ways that are not easily replicable by competitors.
Resource heterogeneity can lead to situations where increased financial resources do not necessarily translate into measurable gains or success, as the structure and the specific intangible assets within an organization, such as brand reputation or company culture, play a crucial role. Moreover, a society's approach to resource allocation and management of scarcity often impacts economic outcomes and the success or difficulty of businesses within that society.