Japanese voters have radically redrawn the country's political map for the second time in three years, handing a decisive supermajority to the conservative Liberal Democratic party in an election where concerns about the economy trumped issues such as nuclear power and China. A day after the election, one question was how far the LDP and its leader, Shinzo Abe, who is to become prime minister for a second time, would push a campaign agenda that touted broad spending increases and a hawkish foreign policy. With all races decided on Monday, the LDP took 294 seats in the 480-seat lower house - almost as many as the now humiliated Democratic party (DPJ) won in 2009 when it ousted the LDP, ending five decades of nearly uninterrupted rule by the party. Gridlock between the two houses helped stymie the DPJ on issues from deficit financing to election reform, eroding its credibility with voters. "It is time to put an end to the last three years of inept political leadership, confusion and stagnation," Mr Abe said at a news conference on Monday. Business welcomed the LDP victory. Hiromasa Yonekura, chairman of the influential Keidanren lobby group, whose members include Japan's biggest companies, said it reflected "people's expectations about the LDP's ability to rebuild the economy" as well as "their harsh assessment of the DPJ government." The Nikkei stock average rose as much as 1.7 per cent, briefly topping 9,900 for the first time in more than eight months, before closing 1 per cent above its Friday close. The yen weakened slightly to Y84 per US dollar. Other major DPJ figures, including former prime minister Naoto Kan, lost in their single-seat districts but managed to stay in the Diet through a parallel proportional representation contest. The free-market Your Party won 18 seats, more than doubling its previous tally. The LDP will enter a probationary period between now and next summer, when it must face voters again in an election for the upper house, and it may tread a relatively cautious path until then. "Only when we win an upper-house majority will we be able to securely carry out policy," Mr Abe said on Monday. He had struck a nationalist tone during the campaign on issues such as Japan's dispute with China over islands in the East China Sea. In his news conference, he promised a potentially self-contradictory effort to "bring back strong diplomacy and improve relations with our neighbours." The presumptive prime minister also expressed a desire to visit Yasukuni Shrine, a controversial war memorial that has been a focus of anger in China and other neighbours invaded by Japan during the second world war. While Mr Abe did not promise to visit the shrine as prime minister, he said he "regretted" not worshipping there during his previous stint as premier in 2006.