1. Are there pre-treatment differences between control cities and treatment cities? How can you tell? 2. Is...
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Question:
1. Are there pre-treatment differences between control cities and treatment cities? How can you tell?
2. Is the coefficient on treatment in model 2 an unbiased estimate of the effect of the carbon tax treatment on greenhouse gas emissions? Why or why not?
3. Interpret the three coefficients in model 3.
4. What assumption is necessary for this differences-in-differences framework to provide unbiased estimates of the effect of the carbon tax on greenhouse gas emissions?
Related Book For
Exploring Management
ISBN: 978-1119231936
5th edition
Authors: John R. Schermerhorn, Daniel G. Bachrach
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