Fuji and Tokyo skyline Jackyenjoyphotography | Moment | Getty ImagesJapan's Nikkei stock index has been on a record-breaking spree on the back of robust earnings and investor-friendly measures. But the country's ailing economy has experts divided over this sustainability of this rally. Japan's corporate governance reforms have been a key driver for the country's stock markets, Momma said, while stressing that stock indexes do not necessarily represent the entire economy that includes SMEs and households. SMEs are a critical lever in the Japanese economy, accounting for 70% of national employment and 50% of the country's economic growth. "Spillover from the global boom of AI-related stocks certainly helped Nikkei," Momma said.

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Persons: Kazuo Momma, Momma, Sayuri Shirai, pare, Shirai, Phillip Colmar MRB Organizations: Nikkei, Mizuho Research, CNBC, Bank of Japan, Nvidia, Technology, Stock, Keio University, Bank of America, Phillip Colmar MRB Partners Locations: Fuji, Tokyo, Germany, Japan, U.S, China