The government has said the domestic economy could be boosted by about 2.7% as a result of the world's largest free trade deal signed by 15 Asia-Pacific nations last year.

Calculated in terms of the country's real gross domestic product in fiscal 2019, the expected economic effect from the Regional Comprehensive Economic Partnership, involving Japan, China and South Korea, corresponds to a GDP increase of around ¥15 trillion ($140 billion), according to relevant Japanese ministries.

In its first published estimate of the impact of the multilateral trade pact covering about a third of global trade and population, the government on Friday predicted around 570,000 jobs would be created.