Bellringer

1. What is your opportunity cost of being here right now?
2. What part of the day do you feel like you have the most energy?
3. What part of the day do you feel like you have the least energy?
4. What do you think explains your answer to #2?
Economists “think at the margin”
• “margin” means additional
• In this case the margin was?
Eventually…
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“the margin”

Additional unit of production
Law of Diminishing Marginal Returns
Eventually marginal benefits will decline
Burritos
Application to students?
School day?
Study time
# of students in class?
# of college credits
Application to driving
Application to BF/GF
Application to stuff you buy
Application to partiers
Application to business?
On your BR
#4 Describe an example
of diminishing returns
from your life.

Diminishing marginal returns