Well, there is Edward S. Miller's "Bankrupting the Enemy". I Can't say that I recommend this one however. It's not super readable and I don't recall it being well grounded in Japanese sources. Kind of more about why Americans thought they could apply financial pressure.

Hopefully you get some other responses with better sources.

If all else fails, there is a chapter/essay on Japan by Akira Hara in "The Economics of World War II: Six Great Powers in International Comparison"

I did some digging and found a powerpoint on the post-war development on the Japanese economy. It gives information on Japan's wartime economy: https://www.gsid.nagoya-u.ac.jp/sotsubo/Postwar_Development_of_the_Japanese%20Economy(Otsubo_NagoyaU).pdf