The notion of relative purchasing power parity holds that the exchange rates and inflation rates of two nations should equalize over time. Relative PPP is a dynamic variant of PPP that is an extension of absolute PPP. As a result, the right answer is (a), which states that identical items should cost the same regardless of the currency used to make the purchase.
It is classified into two types: absolute purchasing power parity, which does not take inflation into account, and relative PPP, which does. PPP is used to compare countries' economic production and living standards. GDP is measured using purchasing power parity, which is an alternative to nominal GDP.
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