ProblemSet10

# ProblemSet10 - Professor Mumford [email protected] Econ...

This preview shows pages 1–2. Sign up to view the full content.

Professor Mumford Econ 360 - Fall 2010 [email protected] Problem Set 10 (Advanced Topic: Instrumental Variables) Due at the beginning of class on Thursday, December 2 True/False (24 points) Please write the entire word. No explanations are required. 1. Consider the regression model y = β 0 + β 1 x + u , where z is a potential instrument for x . In order for z to be a valid instrument, it must be the case that x and u are uncorrelated. 2. Consider the regression model y = β 0 + β 1 x + u , where z is a potential instrument for x . In order for z to be a valid instrument, it must be the case that z and u are uncorrelated. 3. Consider the regression model y = β 0 + β 1 x + u , where z is a potential instrument for x . In order for z to be a valid instrument, it must be the case that z and x are uncorrelated. 4. Consider the regression model y = β 0 + β 1 x + u , where z is an instrument for x . If z is a valid instrument for x we replace x with z in the regression model in order to obtain a consistent estimate of β 1 .

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern