The start date of the quiz is 12-31-1987 because that is the inception of the MSCI ACWI ex USA index. The Bloomberg Barclays US Aggregate Bond Index is a broad-based flagship benchmark that measures the investment grade, US dollar denominated, fixed-rate taxable bond market. Bonus info: The MSCI ACWI ex USA index had a drawdown during the financial crisis of 60.6%.
Since no one wants to play, here is the answer: Bloomberg Barclays US Agg Total Return Value Unhedged USD Index has performed better than MSCI ACWI ex USA Net Total Return USD Index. I find that interesting since the drawdowns of the MSCI ACWI ex USA Net Total Return USD Index have been brutal, while the performance of the bond index seems nice and smooth. So for more than 30 years, US bonds have done better than international equities even without adjusting for risk, which has been massive for equities.
That's not surprising, of course - US equities have been the only equity market with a reasonable performance. On the other hand, government bonds have outperformed globally and likely to continue to do so.
When the comparison starts from 80's bonds always win. It is pretty easy when the starting yields were starting from 14%. It is one way trip down with very minor hicups in 93-94
Overall trend for global GDP is, slowing down (?) might be, negative returns, on long term bonds, by 2030\2035. Picked up this, from interview on Real Vision, any, qualified, fundamental insights - most welcome, thanks.