In 2007, Hausmann, Hwang and Rodrik (HHR) demonstrated that export specialization patterns have important implications for economic growth. The authors developed an indicator of income level linked to the country’s exports they called EXPY and showed that higher values of the indicator lead to...

Theoretical models of growth reveal that either exogenous or endogenous, technology is the main driving force behind the long-run economic growth. Furthermore, in the endogenous growth framework, diffusion of technology is the basic mechanism of per capita income convergence among countries....