This book advances our knowledge on intangibles and their role in productivity growth, presenting a unique multi-level perspective. It encompasses micro, meso, and macro approaches that build upon firm-, industry-, and country-level data and introduces novel layers of analysis. A variety of empirical instruments are used in the book, such as a large-scale international survey, input-output analysis, register data, etc., thus displaying fresh, comparative evidence for Europe, the USA, China, Korea, and Japan. The book also examines the subject within the global value chain context, which is one of the most relevant phenomena of recent decades, and assesses cross-country trends, drawing on a unique industry-level database of intangible assets, based on production input data from all over the world. The book offers new insights on how to measure intangibles, how they contribute to productivity growth, and how policy can help foster intangibles investments and growth. It will therefore be of great interest to scholars, researchers, and advanced students in the fields of economic growth, innovation, technology, and business management.