Serious physical harm to child by an adult is Child Abuse. This is the abuse which is done with the intention to injure as well.
<h3 /><h3>What is Child Abuse?</h3>
Child abuse is the harm that an adult performs over a child, this type of abuse includes sexual abuse, trauma, injury or willful malnutrition.
Willful malnutrition is a common abuse in the few countries where the parents neglect a child and provide a superior position to another child.
Giving trauma to child is also harmful for the health and this causes in lower or slower functioning of the brain.
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Answer: In accordance with the neoclassical economics, the monetary value of a commodity or service is considered as the price of the commodity in an open market. This value is generally determined by the forces of demand and supply , i.e the demand for the commodity relative to supply. Several neoclassical economist evaluate the value of a product or service with the price, irrespective of the market being competitive.
I believe what you're looking for is economics, but I could be wrong.