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Originally Posted by campfirewest
When everyone has an extra $1200 to buy stuff that increases demand. What happens to price when demand increases?
The problem is people tend to intuitively treat inflation as a micro issue, which it's not.
Avg. Price of consumer goods = Demand (consumer spending) / Supply (quantity of goods produced), or P = D/S.
So if we assume a fixed currency and (to keep it simple) wages as paid per piece , it's pretty straight forward that any increase in consumer spending would also entail an increase in the quantity of goods produced, basically leaving P unchanged. Consequently, if we do see an increase in P then we can assume either an increase in the money supply or workers getting paid and consequently spending the the same but producing fewer goods.
The problem with all that is while it works well enough in a relatively stable economy, the shocks to the system over the last couple of years doesn't make this at all straight forward. For instance, an increase/decrease in saving or an increase/decrease in credit card debt also affects D every bit as much as deficit spending. And with S, supply chain issues effectively decreases productivity and workers aren't paid by the piece. So while workers technically didn't get a pay raise, in the macro sense they were getting paid the same for producing fewer goods, which affects P just the same.