The definition of merchantbanking has changed many times over the centuries.
商业银行业务的定义在这个世纪中已改变数次。
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Using WS-Security, the client could sign the payment instructions to be sent to the banking system, preventing any modification to the intended payment amount by the merchant-system intermediary.
They call it merchantbanking, taking their cue from the grandfather of the industry, J. Pierpont Morgan, who created the world's first billion-dollar company in US Steel.