It has the apparatus of a great scholarly work but the drama of a classic novel. Ludwig von Mises’s colleagues in Europe called him the “last knight of liberalism” because he was the champion of an ideal of liberty they consider dead and gone in an age of central planning and socialism of all varieties. During his lifetime, they were largely correct. And thus the subtitle of this book. But he was not deterred in any respect: not in his scientific work, not in his writing or publishing, and not in his relentless fight against every form of statism. Born in 1881, he taught in Europe and the Americas during his century, and died in 1973 before the dawn of a new epoch that would validate his life and ideals in the minds of millions of people around the world. The last knight of liberalism triumphed.

    Planners make rapid decisions that have an immediate impact on the ground--the width of streets, the minimum size of land parcels, the heights of buildings. The language they use to describe their objectives is qualitative--"sustainable," "livable," "resilient"--often with no link to measurable outcomes. Urban economics, on the other hand, is a quantitative science, based on theories, models, and empirical evidence largely developed in academic settings. In this book, the eminent urban planner Alain Bertaud argues that applying the theories of urban economics to the practice of urban planning would greatly improve both the productivity of cities and the welfare of urban citizens.Bertaud explains that markets provide the indispensable mechanism for cities' development. He cites the experience of cities without markets for land or labor in pre-reform China and Russia; this "urban planners' dream" created inefficiencies and waste. Drawing on five decades of urban planning experience in forty cities around the world, Bertaud links cities' productivity to the size of their labor markets; argues that the design of infrastructure and markets can complement each other; examines the spatial distribution of land prices and densities; stresses the importance of mobility and affordability; and critiques the land use regulations in a number of cities that aim at redesigning existing cities instead of just trying to alleviate clear negative externalities. Bertaud concludes by describing the new role that joint teams of urban planners and economists could play to improve the way cities are managed.