The Bank of Japan
(BOJ) is Japan’s central bank and is responsible for determining monetary policy and setting interest rates in the country. Interest rates set by the BOJ typically share a positive correlation with Japanese Government Bond Yields meaning when interest rates fall, yields of Japanese Government Bonds decline in lockstep and vice versa. The BOJ has moved into uncharted monetary policy territory in recent years and was an early adopter of quantitative easing
as well as negative interest rates.
Both were once considered experimental policy paths - especially for a major central bank.