Although True Ion Inc. and One Electro Inc. operate in the same consumer electronic industry, True Ion Inc. has better sales and brand equity. This is attributed to True Ion Inc.$\text{'}$s commitment to innovation. The company has adequate financial and human capital to invest in research and development, an area in which One Electro Inc. lags behind. In this scenario, which of the following critical assumptions of the resourcebased view of a firm has been illustrated?

resource value

resource heterogeneity

resource immobility

resource imitation