Answer:Please refer to Explanation
Step-by-step explanation:
Cross Price Elasticity of Demand is a very useful tool in Economics to ascertain if goods are compliments or Substitutes.
Cross Price Elasticity of Demand (CPSD) measures the change in demand in one good due to a change in price is the other good.
If the CPSD is negative then the goods are Compliments meaning that they are used together which is why when the price of one good goes down, the demand of the compliment goes up because more of the original good will be bought due to the lower price.
If the CPSD is Positive, it means that they are Substitutes and a Decrease in price in one good leads to a decrease in demand for the other good because people will demand less of it and switch to the former (now cheaper) good.
The formula is,
= % change in Quantity Demanded of Product A /% change in Price of Product B
a. Splishy splashies and Flopsicles
CPSD = -18%/-1%
= 18%
The CPSD for both these products is 18% which is a positive figure. This means that they are Substitutes and should not be marketed together.
b. Splishy Splashies and Flopsicles
CPSD = 3%/-1%
= -3%
With the CPSD being a negative figure here, these goods are Compliments.
Splishy Splashies and Flopsicles should be Marketed together as they compliment each other.