By: Level13
In 1991, Barrie Wigmore, a Goldman Sachs limited partner, released a study that attempted to determine what factors drove the stock market’s above-average returns in the decade of the 1980s. After carefully accounting for earnings growth, interest rate declines, M&A activity and analysts’ rosy forecasts, it appeared a full 38% of the shareholder value created in the 1980s remained unexplained. Dubbed the “X” factor, this mysterious driver of value left Wigmore and the Wall Street Journal, which published a feature article on the study, at a loss. Given overwhelming evidence of well-functioning capital markets, it appears completely unsatisfactory to attribute such a large component of share price performance to some unidentifiable and seemingly inexplicable force.
In 1991, Barrie Wigmore, a Goldman Sachs limited partner, released a study that attempted to determine what factors drove the stock market’s above-average returns in the decade of the 1980s. After carefully accounting for earnings growth, interest rate declines, M&A activity and analysts’ rosy forecasts, it appeared a full 38% of the shareholder value created in the 1980s remained unexplained. Dubbed the “X” factor, this mysterious driver of value left Wigmore and the Wall Street Journal, which published a feature article on the study, at a loss. Given overwhelming evidence of well-functioning capital markets, it appears completely unsatisfactory to attribute such a large component of share price performance to some unidentifiable and seemingly inexplicable force.
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