TOKYO, Sept 16 (Reuters) - Japan's Yukio Hatoyama was voted in as prime minister by parliament's lower house on Wednesday, ushering in an untested government to deal with a struggling economy and the deep-seated problems of a fast-ageing population.
Hatoyama's Democratic Party of Japan trounced the conservative Liberal Democratic Party (LDP) in elections last month, ousting the business-friendly party from power for just the second time in its 54-year history.
His new cabinet faces pressure to make good on campaign promises to focus spending on consumers, cut waste and reduce bureaucrats' control over policy while reviving an economy just emerging from its worst recession in 60 years without inflating an already huge public debt. (Reporting by Linda Sieg; Editing by Rodney Joyce)