“…Some studies focus broadly on Japan's energy security (Atsumi, 2007;Evans, 2006;Hideaki, 2000;Nakatani, 2004;Toichi, 2006;Yokobori, 2005). Other studies focus on single issue-areas such as overseas oil development policy (Koike, 2006;Koike et al, 2008); energy diversification (Lesbirel, 2004); oil import diversification (Vivoda and Manicom, 2011); public perception of energy security (Valentine et al, 2011); the role of nuclear power in energy security (Suzuki, 2000;Lidsky and Miller, 2002;Medlock and Hartley, 2004); nuclear politics (Lesbirel, 2003); electricity and petroleum industry regulatory reform (Hartley, 2000;Oyama, 2000;Asano, 2006;Hosoe, 2006) and improved energy efficiency (Morita, 2010;Stewart, 2009).…”