If your income or the income of your family is not enough to buy the basic commodities needed, the goods that you should buy should be based on your scale of preference.
Some goods are known to be more of a necessity than some other goods. The scale of preference helps to outline the goods that would be of more use or necessity to the family.
The most important goods are
So the family would have to buy the most basic goods first given the limited resources.
2. A change in the price of these commodities may make the family to increase its purchase of the goods or it may cause them to buy less of it.
If the price of the good rises, the family would be only able to afford less of it. But if it falls in price, they would be able to buy more.
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