We present new international diversification indexes across equity, sovereign debt, and real estate. The indexes reveal a marked and near ubiquitous decline in diversification potential across asset classes and markets for the post-2000 period. Analysis of panel data suggests that the decline is...

We estimate trends in diversification for equity, debt, and real estate within and across countries. After 2000, we uncover a marked and near ubiquitous decline in diversification, which coincides with sharply higher levels of investment risk. This decline is associated with country economic...

Asset diversification has long been fundamental to investment risk mitigation. We compute new long-term country-specific indices of diversification potential for equity, sovereign debt, and real estate. Findings for the 1986-2021 study period indicate markedly declining or persistently dampened...