The Group of Seven summit in Mie Prefecture in May may have boosted demand in the Japanese economy by roughly ¥107 billion, the prefectural government said Wednesday.

Leaders from Britain, Canada, France, Germany, Italy, Japan and the United States plus the European Union gathered for the Ise-Shima summit from May 26 to 27.

The prefectural government also projects an economic boost of around ¥148.9 billion for five years through 2020 to the prefecture alone. This is due partly to increased numbers of travelers heading there following the summit.

Newspaper, television and online reports are estimated to have created advertising effects of some ¥309.8 billion over the region for the 13-month period through June, the prefectural government said.