Economics is a social science that studies human behavior and how to rationally allocate limited or scarce resources.
The origin of economics
The Wealth of Nations by Adam Smith, the "father of economics", is the foundation work of modern economics. The viewpoint of Aristotle's era is the trinity of politics, ethics and political economy. Amartya Sen, the Nobel Prize winner, said in Ethics and Economics: For a long time, economics has been regarded as a branch of ethics.
Economic classification
From the research scope: macroeconomics, meso-economics, microeconomics.
From the perspective of historical development: family economics, political economics.
From the way the government participates in economic development: market economy and planned economy.
From the perspective of economic subjects: government economy, also known as public economy or public sector economy; Private economy includes enterprise economy.
From the perspective of economic research objects: financial economics, industrial economics, etc.