Smith Industries is considering replacing a machine that is presently used in its production process. The following information is available: 
Which of the information provided in the table is irrelevant to the replacement decision?
Definitions:
GDP Gap
The difference between the actual GDP and the potential GDP of an economy, indicating under-utilization or over-utilization of resources.
Government Bonds
Financial securities issued by a government to finance its budget deficits and various public sector projects.
Discount Rate
The interest rate charged by central banks for short-term loans to commercial banks, influencing monetary policy and economy liquidity.
Required Reserve Ratio
The fraction of deposits that a bank is legally required to hold as reserves, either in its own vaults or with a central bank.
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