This document outlines key concepts related to corporate strategic choices including vertical integration, corporate diversification, corporate strategy, and parenting styles. It discusses vertical integration strategies used by companies like Zara to gain competitive advantages through fast fashion. Corporate diversification is explored through Ansoff's Matrix and the diversification approaches used by Virgin Group across different industries. Parenting styles of companies like Virgin, Berkshire Hathaway, Zara, and Tesco are examined using the parenting matrix to understand how the corporate parent impacts strategic scope and portfolio decisions.