The use of externalities allows the presence of increasing returns similar to the division of labour found in Adam Smith's reasoning.The idea of the book is to look at the linkages between economic growth and distribution, tying in in successive sections the theories of human capital and development, research and development, consumption variety and quality of investment, analysis of imperfect labour markets and closing the book with the linkages between growth and distribution.The chapters display a variety of methodological approaches, from dynamic programming via the Grossman-Helpman model (Chapters 1, 2, 3, 5, 6, 9, 10, 13), analysis of structural change (Chapter 4), social network analysis using graph theory (7), overlapping generations (Chapter 8 and 14), Bellman equation style search theory with behavioural traits (Chapter 9) and Social Accounting Matrices through structuralist macroeconomics (Chapter 12).... This model offers quite persuasive evidence against a statement like Robert Lucas (2004) on the relationships between inequality (proxied in Chapter 12 through the relationship of aggregate demand to the distribution of wages and prices in the economy in equation 12.15) and other macro variables when the economy is investment-constrained.