Answer:
Punishment must occur after the behavior that David aims to correct in the puppy.
Explanation:
According to the principles of operant conditioning, to help the puppy connect the consequence with its behavior, punishment should be immediate following the act. David punished the puppy after getting home from work, which resulted in a delay, preventing the puppy from relating the punishment to its previous action.
The primary concern would be deflation, as it refers to the decline in the value of money. Additionally, if there is an abundance of an item, its worth decreases.