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:Demand is said to be price elastic, if the absolute…If commodity X is a by-product of commodity Y; this…If a fall in price of one commodity leads to an…A situation in which an increase in demand for…A lead bullet of mass 0.05kg is fired with a…