Mr Abe, whose economic policies have been dubbed Abenomics, announced last month that he would delay an increase to the country's sales tax to 10% from the current 8%.
Consumer spending in Japan accounts for about 60% of economic growth.
The three arrows: explaining Abenomics
Japanese Prime Minister Shinzo Abe's economic policy, which quickly became known as "Abenomics" is based on three arrows:
The monetary arrow: expansion of the money supply to combat deflation
The fiscal arrow: increased government