> How does one value a share that, if sold, would immediately diminish in value? v2 = a * v1 > How is a lender to grant credit based on such collateral? v2 =

> How does one value a share that, if sold, would immediately diminish in value? v2 = a * v1 > How is a lender to grant credit based on such collateral? v2 = a^2 * v1 The first where a share is bought to be held for voting rights or long term investment and the second where a share is bought to be sold. Where "a" is the value retained. It would be priced in like any other commission, fee or tax. I don't think that it would sow chaos -- financial institutions and investors are pretty good at estimating value. > Options would be massively difficult, leading to a secondary market for shell contracts in order that shares need not officially change hands. Like derivatives? How about we just regulate those across the board.