UK-headquartered Prudential's claims that its US$35.5 billion takeover of AIA will boost the amount of business sold by the pan-Asian company's agents have been disputed by independent research, reports the Financial Times. The Pru, which last week launched its US$21 billion rights issue to fund the acquisition, said that it could deliver US$800 million more in revenue partly through making improvements to the productivity of AIA's agents.