Final answer:
McDonald's and Wal-Mart use a concentration strategy for growth, expanding their core business model globally and focusing on their main offerings rather than diversifying into new areas.
Step-by-step explanation:
McDonald's and Wal-Mart employ a concentration strategy for growth, focusing on expanding their established business model to new locations and markets, rather than diversifying into completely new product lines or industries. This is evident in McDonald's establishments being present almost everywhere globally, illustrating successful franchise expansion. Wal-Mart similarly grows by opening new stores and expanding internationally, utilizing economies of scale for efficiency. Both corporations exhibit characteristics of multinational corporations, operating without regard to national borders and focusing on their core competencies.