You Say M-eye-cro I Say M-aa-cro

While events drive the data, not generally, the other way round, data can show how policy will likely work out. Micro is, again generally, about your general beating your competitions' generals. Macro, again generally, is about policy that affects everybody, more or less, and what policy is most effective for the entire society. Slavery was a policy decision that benefited Southern planters, Northern consumers, but the slave population, not so much.

Years ago Leontief devised the modern input-output macro model of economies. While not so popular now, today's NYT has a report that demonstrates that such a model explicates how both such models and policies go a long way toward understanding how The Real World Works. The key takeaway (the lede in news jargon):

In monopolizing the supply of vaccines against Covid-19, wealthy nations are threatening more than a humanitarian catastrophe: The resulting economic devastation will hit affluent countries nearly as hard as those in the developing world.

American capitalists, meet your comeuppance. All that outsourcing to cheap hands in cheap economies doesn't work well if lots of those hands are sick and dying.

At the center of the story is the reality that most international trade involves not finished wares but parts that are shipped from one country to another to be folded into products. Of the $18 trillion worth of goods that were traded last year, so-called intermediate goods represented $11 trillion, according to the Organization for Economic Cooperation and Development.

Tim Cook, he of Apple fame, made his bones as a supply chain wizard, defenestrating American production (and employment) in pursuit of cheap labor in autocratic nations. Oh, hell let 'em die, they're just cheap and expendable; just as American (largely immigrant) meat plant workers. The spirit of democracy.