Ask HN: How bad will the 2020 economic crisis be?

Unlikely. One reason the Great Depression was so bad because there was an environmental catastrophe (the Dust Bowl) which made agriculture very hard at a time when agriculture was still a really, really big deal. The virus does not make normal economic activity particularly hard; we are avoiding economic activity for mostly humanitarian reasons, and we can resume economic activity either when everyone gas been infected anyway (yay pandemics), or when testing and treatment is more readily available.

Another reason the Great Depression got worse than a normal depression was that the Hoover administration unwisely decided to make money and credit less available during the crash. Today's policy response is more about throwing money at people (sometimes just at the politically connected, sometimes fairly). One can and should question many specifics (the response is not super coherent) but at least it is the opposite of fiscal and monetary tightening.

Another reason the Great Depression stayed so very bad for so very long was as a consequence the FDR administration's unprecedented intervention into the economy. I don't mean Social Security, either, I mean things like the National Recovery Administration, which explicitly sought to turn the US into a planned economy, with minimum and maximum prices for everything, run by local politically-connected cartels with their own police powers.

When the NRA was declared unconstitutional, its practices were shifted into other places. A few of the more ridiculous practices led by other agencies are still around. For instance, the Supreme Court only killed the USDA's Raisin Board in 2015 when a raisin farmer objected to them seizing 89,000 tons of raisins (30% of his crop) to give away for free in school lunches. (The USDA of that time was also great at encouraging the big agribusiness factory farming and pushing out what small farmers were still able to operate.)

None of this planned-economy stuff is on the table today — not in the US, not with this administration anyway, and not with the current US senate. There's an outside shot of a fully nationalized health system if Bernie Sanders wins and Democrats take the Senate, and that's the most ambitious plan, and even if we assume the taxes to fund it were quite stultifying indeed, it's unlikely to be as harmful. No one is coming for our raisins.

What you are saying, basically, is that due to money flow halting, we will enter a deflationary period?

I would add that even after the crisis is more under control, people will still avoid any not necessary spending for a very long time and this will keep the economy to restart. Also most of them will have depleated all savings at that point and will want to rebuild them aggressively, further reducing spending

I hope you take this time to hug a chinese person and do your part. Trump is already spreading a lot of anti-china hate.