A Bank of Japan policymaker said Thursday that the central bank's experimental quantitative easing measures will bolster the economy and push up prices, expressing confidence that its 2 percent inflation target can be achieved.

"The 2 percent inflation target is expected to be attained as a sustainable economic recovery could boost prices in a well-balanced manner," BOJ Policy Board member Ryuzo Miyao said in a speech in Gifu.

Earlier this month, the BOJ embarked a quantitative easing regime that jacks up its purchases of longer-term government bonds and risky financial assets, including exchange-traded funds and real estate investment trusts, to flood the economy with cash and spur lending.