The flexible capital instruments give investors option, so that they can withdraw the stock, redeem from share or convert into another kinds of capital tools. And we create a new capital tool named the Periodical Stock, which belongs to the flexible capital instruments. 在软硬资本理论下,资本工具被划分为硬资本工具和软资本工具,其中软资本工具赋予投资者退股或赎回或转换为另一种资本工具的选择权。