…The study and practice of economics strives to provide growth and stability; probably the most important aspect of economics. Growth and stability are tracked and expressed as the gross domestic product, GDP, of a country. It tracks a country's level of consumption, investment, government spending, imports, and exports.

Microeconomics, a specialty within economics, attempts to explain business economy in terms of the behavior of agents and principals; primarily focusing on finding methods to maximize profits and utilities of many forms of business. Macroeconomics, another subdivision of economics, examines the economy as a whole, such as the entire US economy and its cycles of growth and recession.

Economics traverses all levels of input and output from a global standpoint to even the smallest business. The exchange rate connects individual countries and their different designations of money together; so as to allow for a translation of currencies. Vital to international trade, the exchange rate keeps the exchanges of currency equal in value. The exchange rates for a country are set based on the strength of its currency relative to that of another country. For example, if the US dollar is strong relative to the Mexican peso, a lesser numeric value of the American dollar will purchase a greater numeric value of the Mexican peso. All human labor and industry translates into a final product or service, and the encompassing result forms the economy. Individual economies then interact with other economies, and form the global economy. The current state of a free international market intertwines the economies of all countries. Therefore, the growth or downturn of a country affects all other countries. Economics is extremely important in this light, as it protects and explains the welfare of all people.