This book introduces graduate students to the major questions of economic growth and long-run economic development, focusing on the theoretical tools necessary for studying these areas. It provides a strong background in dynamic economic analysis and discusses the broad empirical patterns and historical processes underlying the current state of the world economy. The book also serves as a graduate-level introduction to modern macroeconomics and dynamic economic analysis, covering core models such as the Solow growth model, the neoclassical growth model, the overlapping-generations model, and models of technological change and technology adoption. The book is organized into nine parts, covering topics such as the Solow growth model, dynamic programming and optimal growth, optimal control theory, endogenous technological change, stochastic growth, technology diffusion, trade and growth, structural change and economic development, and the political economy of growth. It includes a detailed discussion of the factors that contribute to differences in economic performance across countries, including institutions, policies, and technological progress. The book also explores the role of human capital, the effects of inequality, and the importance of political institutions in economic growth. The book emphasizes the importance of understanding the fundamental causes of economic growth and development, rather than just the mechanics of models. It provides a thorough treatment of modern economic growth, including the core material of modern macroeconomics. The book includes a variety of exercises and mathematical appendices to support the theoretical foundations of economic growth and development. The book is self-contained and can be used for a one-quarter or one-semester course on economic growth, a first-year graduate-level course in macroeconomics, or an advanced course on economic growth or economic development. It is also suitable for self-study.This book introduces graduate students to the major questions of economic growth and long-run economic development, focusing on the theoretical tools necessary for studying these areas. It provides a strong background in dynamic economic analysis and discusses the broad empirical patterns and historical processes underlying the current state of the world economy. The book also serves as a graduate-level introduction to modern macroeconomics and dynamic economic analysis, covering core models such as the Solow growth model, the neoclassical growth model, the overlapping-generations model, and models of technological change and technology adoption. The book is organized into nine parts, covering topics such as the Solow growth model, dynamic programming and optimal growth, optimal control theory, endogenous technological change, stochastic growth, technology diffusion, trade and growth, structural change and economic development, and the political economy of growth. It includes a detailed discussion of the factors that contribute to differences in economic performance across countries, including institutions, policies, and technological progress. The book also explores the role of human capital, the effects of inequality, and the importance of political institutions in economic growth. The book emphasizes the importance of understanding the fundamental causes of economic growth and development, rather than just the mechanics of models. It provides a thorough treatment of modern economic growth, including the core material of modern macroeconomics. The book includes a variety of exercises and mathematical appendices to support the theoretical foundations of economic growth and development. The book is self-contained and can be used for a one-quarter or one-semester course on economic growth, a first-year graduate-level course in macroeconomics, or an advanced course on economic growth or economic development. It is also suitable for self-study.