Japan's best-known investment banker for research on «womenomics» will retire at the end of 2020 from Goldman Sachs after 26 years.

Renowned Goldman Sachs executive Kathy Matsui, who has advocated for Japan to close its gender gap and bolster the role of women in the workplace, is stepping down at the end of the year, according to an internal memo seen by news wire «Reuters». A representative for the bank confirmed that the memo was authentic but did not comment further. In fact, the bank did not give a reason for the departure.

Womenomics, a term she coined in 1999 that was adopted by former Prime Minister Shinzo Abe, is the concept that the advancement of women will give a much-needed economic boost to a graying Japan. Matsui and her team started publishing reports in 1999 on the idea that bringing more women into the workforce and investing in them would help lift Japan's gross domestic product.

Matsui, a specialist in macroeconomics in Asia, was promoted to vice-chair in 2015 after becoming managing director in 1998. The California native joined Goldman Sachs in 1994 after stints at other institutions, including Barclays.