Corporate restructuring refers to changes in a company's ownership, business model, assets, or alliances to improve shareholder value. It can involve reorganizing ownership, business operations, or assets. Common types of restructuring include mergers, acquisitions, divestitures, spin-offs, and joint ventures. Mergers are done horizontally within an industry, vertically with suppliers or customers, concentrically to share expertise, or conglomerately across industries. The goal is often to gain competitive advantages through economies of scale, expanded resources or markets, or reduced costs. Regulatory approval and shareholder approval are typically required for major restructuring transactions.