http://d.hatena.ne.jp/wlj-Friday/searchdiary?word=%2A%5B%A5%D4%A5%B1%A5%C6%A5%A3%5D ◇ トマ・ピケティ: 21世紀の資本論についての新たな考察 | Talk Video | TED.com https://www.ted.com/talks/thomas_piketty_new_thoughts_on_capital_in_the_twenty_…