What is global centralized bank.

A committee of economists are suggesting global reform should consider a global centralized bank. THe
Committee on International Economic Policy and Reform. IN light of the dismantled financial sector in the last 2000s the committee proposes:

…central banks should go beyond their traditional emphasis on low inflation to adopt an explicit goal of financial stability….we call for the creation of an International
Monetary Policy Committee composed of representatives of major central banks that will report
regularly to world leaders on the aggregate consequences of individual central bank policies.

Fulle report here.