In the context of short-run economic equilibrium, the following statements can be evaluated:
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Neither a negative nor a positive GDP gap is possible. - This is not true. At short-run equilibrium, it is possible to have either a positive or negative GDP gap.
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A natural rate of unemployment exists. - This statement is somewhat misleading in the context of short-run equilibrium specifically; the natural rate of unemployment is more applicable to the long-run perspective. In the short run, the unemployment rate could be above or below the natural rate.
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A positive GDP gap is possible. - This statement is true. A positive GDP gap occurs when actual GDP is greater than potential GDP, which can happen in the short run.
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A negative GDP gap is possible. - This statement is also true. A negative GDP gap happens when actual GDP is less than potential GDP, which is also possible in the short run.
So, the true statements regarding short-run equilibrium would be:
- A positive GDP gap is possible.
- A negative GDP gap is possible.