A recessionary gap in an economy like Zeta's implies that it is operating at maximum efficiency, utilizing all available labor resources.

A recessionary gap means that an economy, like Zeta's, is not performing at its full potential. Instead of using all its resources, including labor, the economy is underperforming, leading to higher unemployment and lower production. For example, if Zeta has the ability to produce 100 cars a day but is only making 70 due to lack of demand, it shows that there is a gap. This situation indicates that there are workers who want jobs but cannot find them because businesses are not operating at full capacity. Therefore, a recessionary gap suggests inefficiency, not maximum efficiency.