Catch Up analyzes the evolution of developing countries in the world economy from a long-term historical perspective, from the onset of the second millennium but with a focus on the second half of the twentieth century and the first decade of the twenty-first century. It is perhaps among the first to address this theme on such a wide canvas that spans both time and space. In doing so, it highlights the dominance of what are now developing countries and it traces their decline and fall from 1820 to 1950. The six decades since 1950 have witnessed an increase in the share of developing countries...