While the easing yen is a welcome development for exporting companies, it is slowly starting to cast a shadow on family budgets, pushing up the price of gasoline and other daily necessities.

The average retail price of regular gasoline has gone up for eight consecutive weeks, reaching ¥151.2 per liter Monday, ¥5.7 more than it was on Nov. 26, according to the Natural Resources and Energy Agency.

The weak yen has also pushed up the average retail price of kerosene for nine consecutive weeks, reaching ¥1,792 per 18 liters as of the beginning of this week, an increase of ¥164 since the week of Nov. 19.