Davidson joins from Bank of America Merrill Lynch where he was in charge of the global equities desk.
He will work alongside JPM senior portfolio manager Gerd Woort-Menker who remains lead fund manager.
Davidson will assist Woort-Menker in identifying dividend growth stock ideas.
JPM head of global equities Howard Williams says: “he Global Equity Income category is strategically important for us, so we are delighted to be able to add James to our well established team.
“Having him on the ground here in London will allow us to better leverage our significant research resource, will provide additional focus on our Global Equity Income funds, and will allow us to achieve a higher profile with clients.”