想問下經濟中最難學既係咩?

Property right system and contractual arrangement.

According to Stevne Cheung, traditional economics focuses too much on price and the "ideal" concept of the market, while in reality there are other property right systems other than price mechanism and it is hard to specify relevant contraints to predict behavior under these systems. For example, even Steven Cheung has no clue on some of the contractual arrangements like gratuities and tips.

存款創造與變化

機會成本會不會變

市場個part的反應