Finally, Professor Shiller put forward five interesting ideas about financial innovations, including: Participation Nonprofit, a new form of company that builds new schools or hospitals through fundraising from investors; Continuous Workout Mortgages, a kind of mortgage which reduces the repayment amount automatically when housing prices drop; Governments’ selling of shares in the form of GDP to international investors, a more transparent Greek GDP Warrants; Survivorship i、Insurance, which provides unemployment insurance according to occupational risks; Inequality Index, which guarantees that the economic inequality of the next fiscal year will not exceed a certain index derived from the relationship between the tax system and economic inequality.