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 that prior portfolio choices influence investors' expectations about asset values, and their future choices. We find that people update more from information consistent with their prior choices, leading to sticky portfolios over time. These effects are related to how the brain's...

This paper experimentally tests the Fox-Tversky (1995) source preference hypothesis as axiomatized in Chew and Sagi (2008) where people may have preference between equally distributed risks depending on the underlying sources of uncertainty. We study two forms of source preference. One is based...

It has been widely documented that investment decisions of individual investors exhibit local bias. Yet little is known of how societal forces affect investors' portfolio allocations of local versus nonlocal assets. We propose that social capital, and trust in particular, decreases the local...

We provide the first tests to distinguish whether individual investors equally balance their overall portfolios (naïve portfolio diversification—NPD) or engage in naïve buying diversification (NBD)—equally balancing values in same-day purchases of multiple assets. We find NBD in purchases...

We exploit variation in the ancestries of U.S. equity mutual fund managers to show that ancestry affects portfolio decisions. Controlling for fund firm location, we find that funds overweight stocks from their managers’ ancestral home countries in their non-U.S. portfolio by 132 bps or 20.34%...

In this paper, we present novel data from the German-speaking area on 13,422 venture capital investments between 1999 and 2019, and document a novel and yet unexplained contributor to investors' home bias. We propose a new measure of regional identity based on a recent vehicle license plate...

Investors who only invest in their domestic market are typically referred to as being home-biased. We refer to firm-level internationalization and call into question whether investing in domestic stock indices actually leads to home bias. We use three measures of firm-level internationalization...

A common criticism of behavioral economics is that it has not shown that the psychological biases of individual investors lead to aggregate long-run effects on both asset prices and macroeconomic quantities. Our objective is to address this criticism by providing a simple example of a production...