The assignment provided is a comprehensive analysis of Nokia's business management challenges, focusing on supply chain risks, production planning, and risk hedging. The document draws from various sources, including academic papers, news articles, and online resources. It highlights the importance of integrated production planning and risk hedging in managing global supply chains. Furthermore, it explores the decisive attributes of supply chain risks and uncertainties using big data analysis. Additionally, the document touches on Nokia's partnerships, such as its collaboration with Microsoft, and examines the impact of sales decline on the company's business management. The assignment also references various models and theories, including Kurt Lewin's three-phase change model and Bridges' transition model, to provide insights into Nokia's business management challenges.