When this index exceeds the rate of return earned on equity by the business, the investor's purchasing power (real capital) shrinks even though he consumes nothing at all.
当这个指数超过企业的资本回报率，投资者的购买力(真实资本)缩小为零，即使他没有消费任何东西。
2
Inner relationship exists in investor's protection, equity structure and firm performance.