Answer:
1. When the price of fresh fish increases 5%, quantity demanded decreases 10%. The price elasticity of demand for fresh fish is elastic.
2. The determinants of elasticity include d) all of the above.
3. Cross-price elasticity of demand measures the response in the d) quantity of one good demanded to a change in the price of another good.
4. A value of price elasticity of demand equal to 2 means that b) quantity demanded falls by two times the amount of an increase in price.
Step-by-step explanation:
Price elasticity of demand = % change in quantity demanded of a good / % change in price of the good. Value greater than 1 implies quantity demanded is price elastic, equal to 1 implies quantity demanded is price unitary elastic and smaller than 1 implies quantity demanded is price inelastic.
Cross Price Elasticity of demand = % change in quantity demanded of a good / % change in price of another good.
For rest, refer to the answer.