Shamik Dhar will join BNY Mellon Investment Management on Oct. 1 as chief economist, based in the firm's London office.
The position is new, said Benjamin Tanner, a company spokesman.
Mr. Dhar will be responsible for producing proprietary research and analysis and will be the firm's spokesman on issues including macroeconomics, geopolitics and capital markets.
He reports to Jamie Lewin, BNY Mellon IM's head of product strategy and performance management, Mr. Tanner said.
Mr. Dhar was chief economist and director of economics for the U.K. government's Foreign and Commonwealth Office. A spokeswoman could not immediately provide information about his successor.
Separately, Alejandro Martinez Cruz joined BNY Mellon Asset Management North America as emerging markets economist on Monday, Mr. Tanner said.
Mr. Martinez Cruz is based in Boston. In this new position, he leads research on emerging market economies with a special focus on Latin America and reports to Vincent Reinhart, the firm's chief economist. BNY Mellon Asset Management North America was created earlier this year when BNY Mellon Investment Management merged three of its boutique investment management companies — Mellon Capital Management, Standish Mellon Asset Management Co. and Boston Co. Asset Management.
Mr. Martinez Cruz was head of Latin America fixed-income research at HSBC Securities U.S.A.
Melissa Cassar, an HSBC spokeswoman, did not respond to a request for information about Mr. Martinez Cruz's replacement.