Question

Consumers’ willingness to pay depends on their (blank)

income and prices of related goods.

Answer 1

Consumers' willingness to pay depends on their disposable (or discretionary) income and prices of related goods.

Answer 2

Consumers’ willingness to pay depends on their - preference of customers; income and price of related goods.

The consumer will always pay if he wants to pay that means it depends on his preference.

Secondly, the consumer will not pay out of his pocket limit that means he will pay according to his income.

And also if the price of the related good is as per his limit, then only he will pay.