Criticism of “herd behavior” in the corona crisis

The economist marcel fratzscher considers widespread "herd behavior" to be one of the greatest dangers in the current corona crisis.
"That’s my rough worry: this panic, this herd behavior of financial investors," the head of the berlin DIW told the "passauer neue presse" (saturday). "There’s something like that with companies and consumers, too. This is partly very irrational."In the worst case this could trigger a downward spiral.