Stock DLC based on buy and sell order matching trading with long and short selling mechanisms

[xuxin1458]

At present, the game can only buy long and cannot be sold short, and there is no matching trading mechanism for buying and selling orders. My suggestion is to increase the buy long mechanism for entrusted market transactions and the short selling mechanism for entrusted market transactions. And by adding securities company buildings, investors, players, and AI can choose securities companies to conduct stock IPOs through securities companies, and securities companies can collect certain transaction fees to maintain operations.