In a study of college yearbook photos, researchers found that: ...

[stevenposner]

In a study of college yearbook photos, researchers found that:
 
  a. An inauthentic smile by males meant they would be unhappy in life
  b. Women with the Pan Am (fake) smile were just as happy in life as women with the Duchene (genuine) smile
  c. Smiling type makes no difference
  d. A genuinely smiling woman (with the Duchene smile) is more likely to be married, stay married, and to experience more personal well-being than a woman with the fake smile.

Question 2

Economies of scale for firms in an industry can limit competition.
 
  Indicate whether the statement is true or false

[Bison]

Answer to Question 1

D

Answer to Question 2

T As we have seen before, if each firm must achieve a considerable size in order to achieve low average costs, there may not be room for many firms in that industry. Also, the effect that entry at competitive scale may have in lowering market price can discourage entry.