Economics is a discipline that studies how to optimize the allocation of resources. At present, the more systematic and mature economics is Western Economics, which has experienced two developments of liberalism and state monopoly, but its foundation is the assumption of human nature. Western economics is based on the assumption of rational economy, which is the most important difference between economics and management, Economics bases all people on their greatest common selfishness for the convenience of research, while management needs to treat each individual differently. Management regards the characteristics of human nature as multifaceted. If the assumption of rational economic man is denied, the whole western economics will be reconstructed or even dismantled, so western economics is applicable under private ownership, Marx gave the possibility of ending private ownership, so this set of economics also has the possibility of ending;
Economics is the general term of disciplines that study various aspects of the national economy, including political economics, sectoral economics, accounting, statistics, etc.