Larry Swedroe, who is considered one of the market's most esteemed researchers, thinks Warren Buffett's investment style doesn't work well anymore. "Warren Buffett was generally considered the greatest stock picker of all time. And, what we have learned in the academic research is Warren Buffett really was not a great stock picker at all," Swedroe told CNBC's "ETF Edge" this week. "What Warren Buffett's 'secret sauce' was, he figured out 50, 60 years before all the academics what these factors were that allowed you to earn excess returns." In his latest book, Swedroe likens the stock market to sports betting and active managers to bookies.

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Persons: Larry Swedroe, Warren, Warren Buffett, Swedroe, CNBC's, Warren Buffett's, Cliff Asness, Buffett, Buffett's, who's Organizations: Wall Street, Alpha, CNBC, Buckingham Wealth Partners Locations: AQR, Bridgeway, BlackRock