‘Low-Level Civil War,’ Hyper Stimulus, and Risks That Haven’t Yet Materialized From Barron’s Investing Experts

Welcome to the Roaring ’20s. When the world finally bids good riddance to Covid-19, courtesy of a bevy of novel vaccines, expect Americans to emerge from their lairs with a joie de vivre not seen since the 1920s. That’s marvelous news for the economy, which could use some cheer after a punishing year, and for the many companies that will help keep the good times rolling.

Just don’t expect the party on Main Street to spread to Wall Street, which had a rollicking celebration of its own this past year. As a consequence, stock…