When we talk about "hot economies," we are typically referring to those countries that are experiencing rapid and sustained economic growth. These economies are characterized by robust GDP growth rates, low unemployment, and high levels of investment. However, there are many ways to describe these types of economies using different synonyms. Some possible alternatives to "hot economies" might include "booming economies," "growing economies," "thriving economies," "dynamic economies," "prosperous economies," or "rising economies." Each of these phrases conveys a sense of energy, momentum, and success and can be used interchangeably with "hot economies" in most contexts.