They are parameters that are used to determine the efficiency of countries and their government's ability to meet public needs. That entails procuring a certain amount of social, economic and political stability so the entire country can grow and develops.

International trade is based on the idea that a country can produce something more effectively than other countries and it can use that extra production power to acquire additional profit. That profit can be used for social and economic development or for further investment into other countries.

Every country goes through different political phases and having an eye on them will help all investors see if they are stable enough for their investment to take ground in that country. Using parameters that are objectively designed is helpful in this process because it will give people and companies the relevant information they need.

 Every country that has enough money and export so it can invest in other countries usually does just that. By doing so the leaders of those countries look at how they can improve their own state through those investments. The improvements can be political not just economical.