The Bank of Japan raised interest rates on Friday to their highest since the 2008 global financial crisis, underscoring its confidence that rising wages will keep inflation stable around its 2% target.

Japan's central bank has raised its key interest rate to about 0.5% from 0.25%, noting that inflation is holding at a desirable target level.

The Bank of Japan has raised short-term interest rates by a quarter point, the highest in 17 years, signalling efforts to normalise monetary policy in response to persistent inflation and increasing wages.

In the eyes of Japanese economic policymakers, there have been few surprises from the nearly week-old Trump administration. That, in part, gave them confidence to raise interest rates again Friday. Why it matters: The Bank of Japan had held off hiking rates late last year,

Recent data show Japanese workers are gaining better wages and are generally set to receive solid pay raises in their upcoming annual union negotiations

Japan's central bank has increased the cost of borrowing to its highest level in 17 years after consumer price rises accelerated in December. The move by the Bank of Japan (BOJ) to raise its short-term policy rate to "around 0.5 per cent" comes just hours after the latest economic data showed prices rose last month at the fastest pace in 16 months.