The way the phrase banana republic is used has evolved since it was introduced more than a century ago. It is no longer limited to countries in Central America or the tropics. Key characteristics of a banana republic in the modern world include:
In the modern world, whether or not a country could accurately be described as a banana republic government is a matter of opinion. A number of countries have been described as banana republics at some point.
A country that at some point might exhibit all of the characteristics of a banana republic could change, which would mean that the term would no longer apply. The fact that someone refers to a country as a banana republic does not mean that the country really is one. The phrase is a derogatory description rather than an actual type of government.