In a recent FT article, Ruchir Sharma argues that "...Xi Jinping's goal is to make China a mid-level developed country in the next decade, which implies that the economy will need to expand at a rate of around 4%. But underlying trends -bad demographics, heavy debt, and declining productivity growth- suggest the country's overall growth potential is about half that rate." Given that China currently has a GDP per-capita of about $12,500. Could this fact explain that China is still converging to a steady state and explain any difference you find between the Solow growth rate and the 2% predicted by Sharma?