Multiple Choice
You decrease your product price by $10 in market A but leave it unchanged in market B.Sales in A rise from 840 units per week to 940 while sales in B also rise from 770 to 790.The difference-in-difference estimate of the effect of the price change is:
A) 80 units
B) 100 units
C) 120 units
D) 140 units
Correct Answer:
Verified
Correct Answer:
Verified
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