If we can understand the IS-LM model and Solow model in intermediate macroeconomics, there will be no problem in intermediate macroeconomics. The remaining problem is how to extend the basic assumptions of the model. Adding different assumptions will extend different interesting stories.
Advanced macroeconomics basically does not consider the IS-LM model. Too naive, too simple. The ultimate goal of advanced macro is dynamic optimization. Discuss the biggest decision of a representative consumer's life through dynamic programming or the most controllable method.
The difference between intermediate microeconomics and advanced microeconomics is not as great as that between intermediate macroeconomics and advanced macroeconomics. The content is basically manufacturer theory and consumer theory. Now mainstream microeconomics focuses on game theory and information economics, especially game theory. Now it is a very important branch of western economics-the study of labor economics. One trend is to rewrite the basic research methods of labor economics with game theory. Game theory is increasingly becoming one of the most important fields of microeconomics. Of course, the basic theoretical basis of game theory is the theory of consumers' optimal choice and the theory of manufacturers.
The difference between high micro and medium micro is that the discussion of high micro is deeper and more modeled. So all the seminars are more rigorous. Consumer theory is mainly the best consumption choice of individuals under given constraints. It is nothing more than discussing the very basic issues of income effect and price effect. This will expand the Hicks demand curve and Marshall demand curve. The optimal choice of ordinary consumers is mainly determined by their indifference curve (budget constraints only determine their consumption level), that is, consumption function. The theory of consumer optimal decision-making is actually the micro-foundation of Gao Hong. To put it bluntly, the manufacturer theory is to minimize costs and maximize profits. Like consumer theory, there will be different choices under different assumptions of cost function forms. In fact, the manufacturer theory and the consumer theory are interlinked, and many times they are just expressed in different ways.
Behavior in daily life can basically be explained by the basic analytical methods of economics. I won't talk about examples here. Thank you. I hope it helps you.