An artisanal bespoke perfume brand experiences a sharp contraction in sales volume following a general decline in consumer incomes.
Which of the following is the most likely value for the income elasticity of demand (YED) for this luxury product?
−2.50-2.50−2.50
−0.60-0.60−0.60
+0.60+0.60+0.60
+2.50+2.50+2.50