What is the main reason competing corporations often combine resources?

Competing corporations often combine resources to achieve economies of scale, which can lead to reduced costs and increased efficiency. By pooling resources, they can enhance innovation, expand market reach, and strengthen their competitive position. Collaborations can also provide access to new technologies and capabilities that may be too costly or time-consuming to develop independently. Ultimately, these mergers or partnerships aim to create greater value and improve profitability for all parties involved.