Offer your thoughts or opinion on the input financial query or topic using your financial background.

Why do US retirement funds typically have way more US assets than international assets?
It's likely that the main reason is the additional currency risk for non-USD investments. A wider diversification in general lowers risk, but that has to be balanced by the risk incurred when investing abroad.  This implies that the key factor isn't so much the country of residence,  but the currency of the listing. Euro funds can invest across the whole Euro zone. Things become more complex when you consider countries whose currency is less trusted and whose economy is less diversified. In those cases, the "currency risk"  may be more due to the national currency, which justifies a more global investment strategy.