Haven analyze and confirm what economy can do, it's very important to note that no economy is complete, by so doing each of the countries economy has it own strengths and weaknesses, however there are factors that plays necessary and important roles in building the economies such as cultural, historical, and political contents. care for it, is more useful to understand. There are Diverse ranges of approach in which strategies countries used to meet up their economic demands. Some developed rich countries such as Saudi Arabia, and Russia rely on sectors like oil and gas for the economic strength, why some countries like, luxembourg or singapore, build thriving economics based on the financial service, trade and as well global connectivities.