Fair Price

We need to buy goods and services at fair price .

If they are more expensive than we think ,
we should buy them cheaper .

If they are cheap comparing with their value ,
we had better try to buy them at fair price .

Why should we act in this way ?

People produce them cooperatively .

Price is the standard of value for the labor .

So price is the important thing that we should consider .

Let's go shopping and buy things cleverly !!