Do our rulers know enough to avoid a 1930s replay?

"From what I have been able to find out, shipping is slowing as fast as it did in the grim months of late 1931. “The crisis is now in full swing across the entire world,” said Giulio Tremonti, Italy’s finance minister. “It is hitting the real economy, the productive forces of industry. It’s global, it’s total, and it’s everywhere,” he said."