One of the key principles of money is ‘opportunity cost.’ It means that when I buy something, I have to give up something else in return. We think we buy because we need something, but we often forget that we could buy something else instead. We rarely consider ‘opportunity cost’ when making a purchase. We do not compare other values against our needs. Buying something means giving up something else, but we often don’t realize it. When we spend money, we should also consider the ‘opportunity cost’; yet, in reality, we aren’t trained to do so. By making a purchase, we bypass the value comparison that may not offer any additional benefits. Maybe it’s because we lack knowledge, or perhaps the idea isn’t appealing. - Joseph’s “just my thoughts”
When we exchange what we need, we use money as a medium instead of trading ‘goods for goods.’ In this context, money acts as a means of exchange. When we exchange what we need, we also build wealth by passing on added value to each other. In other words, money functions as both a medium of exchange and a measure of value, as well as a tool for accumulating wealth. But isn’t this a bit strange? Although exchange value comes from goods and surplus is generated from this exchange value, the object used to measure and accumulate wealth is money, not goods. This is because money alone has the privilege called ‘compulsory circulation power.’ In other words, even if value is created, added value cannot be realized unless it’s exchanged. The ability to enable such exchanges is what we call ‘compulsory circulation power.’ - Joseph’s “just my thoughts”