allie is shopping when she finds a pair of running shoes priced at $90. when allie uses her debit card to pay, it is declined because her balance is insufficient to cover the cost of the running shoes. allie’s situation best illustrates which economic concept?

Allie's situation best illustrates the economic concept of scarcity. Scarcity highlights the limited availability of resources relative to unlimited wants. In this case, Allie's insufficient balance to pay for the $90 running shoes demonstrates a limitation in her financial resources, meaning she cannot fulfill her want due to scarce funds.

Additionally, this can be linked to the concept of insufficient funds , which occurs when an account lacks the necessary balance to cover a transaction, leading to declined payments as in Allie's debit card transaction.

Thus, Allie's declined payment due to insufficient funds is a practical example showing the scarcity of financial resources.