"The gender issue ... weaves so tightly into every social and development issue we're facing today," he told Reuters.
Like the rest of the World Bank, the IFC focuses on fighting poverty, but targets its investments at the private sector instead of governments.
Women make up roughly half the world's population, but 70 percent of the world's poor people. A third of small- and medium-sized businesses in emerging markets are owned by women, but they often face hurdles in accessing credit from banks, meaning their businesses cannot grow.
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A joint study by IFC and consulting firm McKinsey & Company found that women entrepreneurs face a $260 billion to $320 billion credit gap, meaning the difference between the desired and actual level of loans businesses are able to get.
The money raised from the bond, which settles Nov. 21, will go to local banks and financial intermediaries who are required to commit it to businesses in which women own the majority stake, or where they own at least a fifth of the company and hold senior leadership positions.
The World Bank committed to reducing extreme poverty to 3 percent of the world's population by 2030, which is impossible without focusing on women, Hua said.
To meet the poverty-reduction goal, World Bank President Jim Yong Kim launched a major reorganization of the bank's divisions and designated gender as one of five cross-cutting "themes" that must tie in to everything the bank does. The other four themes are climate change, conflict and fragility, jobs, and public-private partnerships.
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Hua said IFC was also considering other thematic bonds in addition to green bonds and women's bonds, but declined to specify what areas they would focus on.
Daiwa Securities arranged and distributed the women's bonds, which were available only in Japan, though the program could expand to other investors next year. Japanese retail and institutional investors are particularly open to innovative financial instruments focused on social issues, the IFC said.