X is a manufacturing company that has achieved long term success by understanding the structure of its industry, and where necessary changing its…

X is a manufacturing company that has achieved long term success by understanding the structure of its industry, and where necessary changing its strategy in order to achieve improved performance by outperforming its competitors. Success has depended on the company exploiting the underlying economic factors (such as economies of scale) better than its competitors and maintaining this over time, so achieving sustainable competitive advantage. Researchers would call this an "outside-in" approach to strategy, with the company choosing a strategy that responds to the challenges and changes posed by the external environment. Which type of strategy is X adopting?