These and many other new corporate enterprises would drive the Dow Jones Industrial Average to previously unimagined levels—only for it to tumble, again and again, before finding its footing and powering ever higher. This was the world Clarence W. Barron sought to understand and explain in Barron’s National Financial Weekly, the first issue of which was published in 1921. We’ll be celebrating Barron’s centennial throughout the year, looking at how Barron’s journalists such as Barron himself, Robert Bleiberg, Alan Abelson, and generations of writers of The Trader column saw their w...