The Element highlights the monopolization and exclusion from high-value knowledge in analysing divergent and, recently, partially convergent income trends across 200-odd years of the global capitalist economy. A Southern lens interrogates this history, in the process showing how developing command over knowledge creation sheds light on the middle-income trap. Overall, it shows a new way of looking at global capitalist economic history, highlighting the creation of, command over and exclusion from knowledge. This forces us to analyse the role of the subjective or agential element in making history; a subjective element that, however, always works from within and transforms existing structures and processes. This title is also available as Open Access on Cambridge Core.