There is a slight distinction here though. I would tend to only describe the situation as a "shortage" if there is insufficient supply to meet demand at the actual price sellers are offering. If restaurants double their prices and thus a lot of people are no longer willing to pay (and are upset), that's not what I would consider a "shortage" (although it might certainly be described as such in headlines or in conversation). In my view that's no more a shortage than the ongoing lack of supply for private jets at the price of $10,000. I'd pay $10,000 for a private jet!

But there can also be a fuzzy area here. There may be situations where most sellers have not raised their prices to respond to decreased supply (for a variety of reasons), and therefore other mechanisms (like who gets in line the earliest) determine who gets to buy. At the same time there may be a small number of sellers who do raise prices (think of the toilet paper hoarders who resell on Craigslist at huge markups). If you consider that higher reseller price to be the "market price" then that wouldn't wouldn't strictly be a shortage, but if you consider the unchanged price to be the market price then that would indeed be a shortage. (In fact, this is why for every natural disaster there are articles with headlines like "Price gouging is actually a good thing; it's the solution to shortages.")

"The solution to an observed shortage of labor is “employers pay more and quit whining”." - Keep in mind that going along with higher prices (wages), there will be a lower quantity (jobs). At least according to your Econ 101 book.

> "The solution to an observed shortage of labor is “employers pay more and quit whining”." - Keep in mind that going along with higher prices (wages), there will be a lower quantity (jobs).

No, that would only be true if there was not an observed shortage; that is, if the current market price was clearing the market with no unmet demand at the market clearing price.

An observed shortage that is not a real shortage means that the market price can rise to the point of market equilibrium without reducing quantity traded. In fact with a normal supply curve shape, the minimum price increase to achieve equilibrium will increase the quantity traded compared to the status quo, as quantity supplied will increase with price. Quantity demanded will be lower than in the status quo, but since the “observed shortage” is quantity demanded being above quantity supplied and, therefore, traded at the current price, that reduction is literally just reducing the “observed shortage” to zero, not reducing quantity traded.