Lila shares a house with two other people. She is a concert…

Lila shares a house with two other people. She is a concert pianist and often practices at home. One roommate enjoys listening to her practice, but the other does not. For the roommate who enjoys listening to Lila play, this is an example of ________; for the other roommate, it is an example of ________.

Along Oakwood Street, three houses in a row are owned by Rod…

Along Oakwood Street, three houses in a row are owned by Rodney, Stella, and Tonya.  Each homeowner engages in activities which may, or may not, be negative externalities.  Determine which of the answer choices is correct.    Rodney plays opera music through stereo speakers set up on his outside deck.  Stella likes the music, but Tonya hates it.  Stella gets a new German shepherd for protection, but the dog barks constantly throughout the night keeping Rodney from sleeping.  Tonya wears earplugs at night, so she doesn’t hear the dog.  Tonya landscapes her yard each weekend by planting many colorful flowers and pulling unsightly weeds from her St. Augustine grass.