Two consumers, Eric and Eli, have the same preferences for good X, a normal good. The only difference is that for Eli there would be no income effect if the price of good X changed; the two would experience the same substitution effects, though. In other words, for Eric, there would be both income and substitution effects for a price change, but Eli would only experience substitution effects. What does this tell you about Eric's and Eli's demand for good X? Explain.