Your authors state that the rise in the U.S. poverty rate from ...

[lidoalex]

Your authors state that the rise in the U.S. poverty rate from 2000 to 2010 was primarily caused by
 
  A) the rise of huge corporations and big box stores in the consumer goods sector.
  B) the growing number of students straddled with student loan debt.
  C) the Great Recession that began in 2008.
  D) none of the above reasons.

Question 2

Mary has to choose between a four-day vacation and a five-day vacation to the same place. To arrive at the optimal choice, which optimization technique do you think will be arithmetically easier and faster to implement and why?
 
  What will be an ideal response?

[frejo]

Answer to Question 1

C

Answer to Question 2

In this case, to arrive at the optimal choice, optimization in differences will be arithmetically easier to implement than optimization in levels. If she optimizes in levels, she would evaluate the total net benefit of a four-day trip and compare it to the total net benefit of a five-day trip. On the other hand, optimization in differences will only require an estimation of the net benefit of the fifth day, as the first four days are common in both options. This makes it easier and faster to implement.

[lidoalex]

Great answer, keep it coming

[Dinolord]

Gracias!