What is the primary characteristic of a managed floating currency system?

In a managed floating currency system, currencies are allowed to float according to market forces but are subject to some degree of intervention by the government or central bank. This intervention might involve actions to stabilize the currency, influence its value, or control significant fluctuations. The government may step in to buy or sell currencies in the foreign exchange market to maintain a desired exchange rate or target inflation rates.

The option stating that it is strictly determined by market forces characterizes a pure floating currency system rather than a managed one. The idea that governments frequently change the currency value suggests a more active seizure of control, which typically applies to fixed or pegged systems. Minimal intervention by governments would align more closely with a floating rate system where no government interference occurs, which is not applicable here. Thus, the concept of allowing currencies to float with some government intervention best captures the essence of a managed floating currency system.