Core Viewpoint - Citigroup plans to increase its investment banking staff in Japan by 10% to 15% next year and hire new employees in Australia as part of its strategy to boost growth in the Asia-Pacific region [1] Group 1 - Citigroup's investment banking head for the Asia-Pacific region announced the hiring plans [1] - The increase in staff in Japan is aimed at enhancing the company's presence and capabilities in the market [1] - The recruitment in Australia is also part of the broader growth strategy for the Asia-Pacific region [1]