We study portfolio diversification in an experimental decision task, where asset returns depend on a draw from an ambiguous urn. Holding other information identical and controlling for the level of ambiguity, we find that labeling assets as being familiar or from the homeland of subjects...

We study portfolio diversification in an experimental decision task, where asset returns depend on a draw from an ambiguous urn. Holding other information identical and controlling for the level of ambiguity, we find that labeling assets as being familiar or from the homeland of subjects...

We document a new investor preference we call the home-institution bias. Whereas the home-asset bias is a preference for domestic assets, the home-institution bias is a preference for domestic financial institutions. Our data come from Sweden’s government-mandated retirement system. In...