Contract theory is a field of economic and legal analysis concerned with understanding how individuals and organizations structure agreements under conditions of asymmetric information, uncertainty, and bounded rationality. It investigates the optimal design of contracts to align incentives, mitigate risks such as adverse selection and moral hazard, and ensure enforceability. Utilizing formal analytical tools, its significance lies in providing a framework for analyzing a wide range of economic and social phenomena, informing the design of institutions, markets, and organizational structures.