Mr Abe has also promised to implement policies to weaken the yen - an issue that has been at the heart of Japan's economic problems in recent times and something his plan for spending could also help tackle.
J's ultra-low 0.25% has fuelled an unhealthy boom in the yen carry trade as investors borrow cheaply in Japan to invest in higher-yielding assets overseas.
An interest-rate gap is opening between currencies like the dollar and the yen on the one hand, where monetary policy is likely to remain ultra-loose, and higher-yielding ones like the euro on the other.