Which of the following are included in this year's GDP? Explain your answer in each case.

a. The services of a commercial painter in painting the family home.

b. An auto dealer's sale of a new car to a nonbusiness customer.

c. The money received by Smith when she sells her biology textbook to a used-book buyer.

d. The publication and sale of a new economics textbook.

e. A $2 billion increase in business inventories.

f. Government purchases of newly produced aircraft.

a. The services of a commercial painter in painting the family home.

No, Not Included, As no monetary/payment transaction is involved for service provided.

b. An auto dealer's sale of a new car to a non-business customer.

Included, As the sale of car has happened to the final consumer

c. The money received by Smith when she sells her biology textbook to a used-book buyer.

Not included, as nothing new is produced in the economy

d. The publication and sale of a new economics textbook.

Included, As new books are produced in the economy

e. A $2 billion increase in business inventories.

Included, as this new inventory is produced during this year.

f. Government purchases of newly produced aircraft.

Included, As it's production took place this year and government is final consumer.