Marginal Analysis

Try It

  1. Suppose the relationship between your study time and your grade on a History midterm is given by the following table:
If you study forYour grade will be
4 hours82
5 hours91
6 hours94

What is the "marginal grade improvement (MGI)" of the 5th hour of studying?

____ points

2. What is the "marginal grade improvement (MGI)" of the 6th hour of studying?

____ points

3. Why might the MGI be diminishing?