Well, this is an example of sunk-cost bias. It refers to such investment which has already been incurred and can never be recovered.
So, in the following example, if a company or a business organization has already spent some amount of money on the investment and new technology is brought into the market. The investor will not spend the amount on new technology keeping "sunk-cost bias" in context because the cost he has spent in buying the precious commodity can not be incurred.
In business, fixed and sunk costs are two distinct categories of expenses. Given that it cannot be adjusted or changed, a sunk cost is always a fixed cost. However, it is not a sunk cost because a fixed cost can be halted, such as by the sale or return of an asset.
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