Beyond Buffett : Does value investing still work?

https://www.economist.com/leaders/2020/11/14/does-value-investing-still-work 

or a moment this week investors could afford to ignore stockmarket superstars like Amazon and Alibaba. As news of a vaccine broke, a motley crew of more jaded firms led Wall Street higher, with the shares of airlines, banks and oil firms soaring on hopes of a recovery. The bounce has been a long time coming. So-called value stocks, typically asset-heavy firms in stodgy industries, have had a decade from hell, lagging behind America’s stockmarket by over 90 percentage points. This has led to a crisis of confidence among some fund managers, who wonder if their framework for assessing firms works in the digital age (see article). They are right to worry: it needs upgrading to reflect an economy in which intangibles and externalities count for more.

For almost a century the dominant ideology in finance has been value investing. It has evolved over time but typically takes a conservative view of firms, placing more weight on their assets, cashflows and record, and less on their investment plans or trajectory. The creed has its roots in the 1930s and 1940s, when Benjamin Graham argued that investors needed to move on from the pre-1914 era, during which capital markets were dominated by railway bonds and insider-dealing. Instead he proposed a scientific approach of evaluating firms’ balance-sheets and identifying mispriced securities. His disciple, Warren Buffett, popularised and updated these ideas as the economy shifted towards consumer firms and finance in the late 20th century. Today measures of value are plugged into computers which hunt for “factors” that boost returns and there are investors in Shanghai loosely inspired by a doctrine born in Depression-era New York.