Ivanka Trump, the eldest daughter of U.S. President Donald Trump, shared a stage with Prime Minister Shinzo Abe during a summit in Tokyo on Friday, saying that the world must boost women's economic power and participation in the fields of science, technology, engineering and math.

Trump, an informal White House adviser, arrived in Tokyo on Thursday preceding her father's planned visit on Sunday, his first trip to Japan since taking office in January.

Abe, who opened the summit with his own speech, pledged to contribute $50 million (about ¥5.7 billion) to the Women Entrepreneurs Finance Initiative championed by Ivanka Trump.