In order to determine which country will be the next economic superpower, it may be difficult to tell and have proof to support it. No one can look into the future and determine which countries will not only rise to power, but also rise past the existing countries that have strong economies. One way to tell is to look at the past. These countries that have gained strong economies for a substantial number of years in the past may predict the future, in a sense.
Today, the economies are determined by strength based on the amount of money gained based on their gross domestic product. These are the goods and services sold from the country. When ranking these countries based on their GDP, the top countries include United States, China, Japan, Germany, United Kingdom, and France.