金融期货交易中的保证金调整及其杠杆效应曲丽萍保证金制度是维持期货市场正常运行的根本制度之一，期货市场的健全来自于保证金制度。期货市场参与者在进行交易时必须存入一定数额的履约保证金。保证金是期货交易所要求买卖双方确保履约的一种财力保证。如果买卖双方在合... Margin Adjustment in Financial Futures Transactions and Its Leverage Effect Qu Liping Margin Security System is one of the fundamental systems to maintain the normal operation of the futures market. The soundness of the futures market comes from the guarantee system. Futures market participants must deposit a certain amount of performance bond when making the transaction. Margin is a kind of financial guarantee that the futures exchange requires the buyers and sellers to ensure the performance. If the buyer and the seller are in the ...