Home bias is an investor’s preference to invest their capital primarily in domestic equities rather than diversifying with foreign investments. This persistent personal preference has been seen in portfolio decisions for centuries and it can have a big impact on the investor’s portfolio. While home bias can have advantages, such as stability and the ability to capitalize on well-known opportunities, it also has its drawbacks.

There are several reasons why investors might have a home bias in their portfolio. Transaction costs, inaccessibility, and unfamiliarity with foreign equities are some of the most common reasons. In the past, investors may have been less likely to invest in foreign markets due to high transaction costs, lack of information and liquidity, or lack of experience in those markets. Additionally, investors may be unfamiliar with the legal and political system in the foreign market which can lead to a feeling of discomfort with investing there. However, in today’s global markets, these barriers to entry are significantly less of a factor.

Interestingly, home bias affects not only individual investors, but experienced and professional investors, such as mutual fund managers as well. This phenomenon has been studied across different generations, and generational differences were observed. For example, younger generations were more likely to hold a greater portion of foreign equities than older generations and were more willing to take the risks associated with doing so.

Investing in foreign equities is now much easier than in the past due to the emergence of newer technologies and investment vehicles such as ETFs. With access to financial information and online trading platforms, investors have more visibility into global markets and can now access these markets with fewer transaction costs and in a much shorter period of time.

With the arrival of technology and automation, global markets have opened up a lot, providing investors with a wealth of opportunities to diversify their portfolios. Although home bias still exists, investors should consider diversifying into foreign markets when possible as it can potentially open up a wide range of untapped opportunities and returns. However, investors should also keep in mind the risks associated with foreign investments, including currency exchanges and unfamiliar legal and political systems.