By Leika Kihara
TOKYO (Reuters) -Bank of Japan policymakers debated the impact a weak yen could have on prices, with some flagging the chance of raising interest rates sooner than expected if inflation overshoots, minutes of the central bank's April policy meeting showed.
A few members of the nine-person board said the central bank must respond with monetary policy if exchange rate moves, which are among the key factors affecting the economy and prices, alter its view on the outlook and risks, the minutes released on Wednesday showed.
The weak-yen boost to inflation may have become bigger and more lasting than in the past, as companies are already keen to hike prices and wages, some members were quoted as saying.
"There are various upside risks to inflation," such as the fallout from a weak yen, expansionary fiscal policy and a tight labour market, one member said, according to the minutes.
"Currency moves are among key factors affecting the economy and prices. If the economic and price outlook, or the risks, change, the BOJ must respond with monetary policy," a few members were quoted as saying in the minutes.
At the April meeting, the BOJ kept interest rates around zero and highlighted a growing conviction that inflation was on track to durably hit its 2% target in coming years, signalling its readiness to hike borrowing costs later this year.
The minutes came in the wake of BOJ Governor Kazuo Ueda's comments in parliament on Tuesday that the central bank could raise interest rates in July depending on economic and price data available at the time.