Local companies keep multinational corporations (MNCs) at bay through several strategies: 1) Offering customized products and services tailored to local customer preferences and income levels. 2) Developing business models to overcome key obstacles like lack of infrastructure that MNCs face in their countries. 3) Adopting latest technologies to keep operating costs low and deliver good quality products competitively. 4) Leveraging low-cost local labor instead of relying solely on foreign technologies. 5) Scaling up business quickly within the country, as illustrated by the Goodbaby Group of China expanding to 300 distributors across 35 cities.