WAEC - Economics (2020 - No. 6)
The figure above shows the change in demand for Commodity X which is a normal good. Use it to answer the question that follows.
Which of the following caused the change in demand from D\(_{1}\) D\(_{1}\) to D\(_{2}\)D\(_{2}\)
Fall in the income of consumers
Rise in the price of a substitute
Rise in the price of a complement
Fall in the supply of commodity X