Economic Complexity: Correlations between Gross Domestic Product and Fitness

In this paper we study the causal relation between country Economic Fitness Fc and its Gross Domestic Product per capita ( GDP ). Using the Takens’ theorem, as first suggested in (Sugihara, G. et al. 2012), we show that there exists a reasonable evidence of causal correlation between GDP and Fc for relatively rich countries. This is not the case for relatively poor countries where Fc and GDP do not show any significant causal relation. We also present some preliminary results to understand whether GDP or Fc are driving factor for economic growth.