Why are you using purchasing power parity data? Japanese people don't live in America. They live in Japan. You are introducing local factors from the US into th

Why are you using purchasing power parity data? Japanese people don't live in America. They live in Japan. You are introducing local factors from the US into the data. According to this: https://www.google.com/publicdata/explore?ds=d5bncppjof8f9_&met_y=sp_pop_totl&idim=country:JPN&dl=en&hl=en&q=japan%27s%20population https://www.google.com/publicdata/explore?ds=d5bncppjof8f9_&... Japan's population begins to stagnate around 1996 or so. Use this chart and restrict the data from 1996 to today. http://www.tradingeconomics.com/japan/gdp-per-capita-at-current-prices-imf-data.html http://www.tradingeconomics.com/japan/gdp-per-capita-at-curr... Now use this chart: http://www.tradingeconomics.com/japan/gdp-growth-annual http://www.tradingeconomics.com/japan/gdp-growth-annual Again, restrict from 1996 and onward. Then select trend. A nice downward line trending toward 0. The true effects of a stagnating population won't be felt for years. As the article notes, Japan's population is aging rapidly. That means fewer and fewer productive members.