The present paper expands the approach developed by Hidalgo et al. (2007), Hausmann et al. (2007) and Hidalgo and Hausmann (2009) to analyse the relationship between structural change and economic sophistication. To do so, the paper shows product space networks for each decade since the 1960’s and analyses revealed comparative (dis)advantages indictors for Brazil and South Korea from the 1960s to 2000s. The results show that although having similar per capita GDPs in the beginning of the series, South Korea achieved faster growth than Brazil by specialising in high sophistication, technology intensive goods. 

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