As per International Monetary Fund (IMF) 2019 estimates, the GDP (nominal) of Dominica is USD 542 million. Currently (2019), the world rank of Dominica is 179 in terms of GDP Nominal.
However, as per 2018 estimates by World Bank, the GDP (Nominal) of Dominica is USD 504 million. As per World Bank Estimates, the global rank of Dominica is 177.

Dominica GDP [PPP]

On the other hand, as per 2019 estimates by International Monetary Fund, the GDP (PPP) of Dominica is USD 849 Million.  Dominica on this basis has a global rank of 179.