一个理由是“交易对手风险”——买者或卖者无法履行义务——造成的巨大威胁。

One reason is the broad threat of "counterparty risk" -the possibility that a seller or buyer cannot meet its obligations.

youdao

当交易对手风险较低时，这看起来是个好主意，但是可能是一种突然并且明显的改变。

This may seem like a good idea when counterparty risk is low, but that can change abruptly and dramatically.

youdao

你们还应该理解在我们确立合约时要求预先偿付，因此没有交易对手风险。

You should also understand that we get paid up-front when we enter into the contracts and therefore run no counterparty risk.

youdao