Determine the concept of Law of demand

We have considered numerous factors which fashion the demand for a commodity. As explained the first and most important factor which determines the demand of a commodity is its price. If allother factors (noted above) remain constant, it can be said that as price of a commodity increases, its demand decreases and as price of a commodity decreases its demand increases. This is a universal behaviour observed in a market. This gives us the law of demand: "The demand for a commodity increases with a fall in its price and decreases with a rise in its price, other things remaining the same". The law of demand therefore merely states that price and demand of a commodity are inversely related, provided all other things remain unchanged or as economists put it ceteris paribus.