2. World economic growth history a) During the period of 1950-73 Western Europe had a great economic growth performance as its average GDP growth reached 4.8% but Japan had ever a much greater performance with a 9.3% GDP average growth in the same period. How this huge difference may be explained? Your arguments must be based on growth theory summarized by the production function. (20p) b) Why TFP is important for explaining long run economic growth differences across countries? (As explained by professor Ozan Bakl#) (lop)