When an increase in the price of a commodity lead to a fall In the demand for another; the demand for the two commodities are said to be? by Sunday | May 4 | Economics NECO | 0 comments A. abnormal B. competitive C. composite D. derived E. joint Correct Answer: Option E – joint Users Also Read These:If commodity X is a by-product of commodity Y; this…If the demand for one commodity excludes another; it…When a change in the demand for commodity A leads to…If as a result of fall in price of the commodity X,…If a fall in price of one commodity leads to an…