The plunge in the yen’s value against the U.S. dollar continues with no end in sight, harming Japan’s economy by pushing up import costs.

A currency’s value is affected by numerous factors, making predicting fluctuations a difficult matter, but some economists say there are potential ways of alleviating the yen’s recent weakness.

Earlier this month, the yen tumbled below the key ¥140 line, coming close to reaching the ¥145 level, to hit a fresh 24-year low last week. With the yen having plummeted more than 20% this year, markets are watching whether the currency will breach the ¥147 line seen in August 1998.