There’s an old saying which goes: “You can’t have your cake and eat it”. In other words, you can’t use a resource and keep it at the same time, and it’s something business-owners are well aware of. Sell that unit of product, and it’s sold, never to be sold again. Use that money to buy new stock, and you can’t spend it on something else.
Spend money on refurbishing your office and you can’t spend the money on buying new stock. This is what economists refer to as “opportunity cost”.
