In general there were two types of business strategies that allowed for monopoly control over an industry and combinations?

The two primary business strategies that facilitated monopoly control over an industry are vertical integration and horizontal integration. Vertical integration involves a company controlling multiple stages of production and distribution within the supply chain, reducing reliance on suppliers and increasing efficiency. Horizontal integration, on the other hand, occurs when a company acquires or merges with competitors to consolidate market power and reduce competition. Together, these strategies can create barriers to entry for other firms, allowing monopolies to thrive.