https://www.mckinsey.com/~/media/mckinsey/industries/financial%20services/our%20insights/the%20rise%20and%20rise%20of%20the%20global%20balance%20sheet%20how%20productively%20are%20we%20using%20our%20wealth/the-rise-and-rise-of-the-global-balance-sheet-nov-2021-full-report_final.pdf
