Unlike primary market investment, which has obvious arbitrage space facing the secondary market, transactions in the secondary market are more free, open, transparent, and fairer. If we borrow Marx's theory of capital circulation, the primary market is like a production link, and the secondary market is like a free market transaction link, and surplus value can only come from the primary market. Of course, the actual situation is much more complicated than this. There are also many situations...

Unlike primary market investment, which has obvious arbitrage space facing the secondary market, transactions in the secondary market are more free, open, transparent, and fairer. If we borrow Marx's theory of capital circulation, the primary market is like a production link, and the secondary market is like a free market transaction link, and surplus value can only come from the primary market. Of course, the actual situation is much more complicated than this. There are also many situations...