Lecture 8: Randomised Experiments

Question 1

What is the potential outcome approach? Explain it

Answer 1

Question 2

What is the definition of causality?

Answer 2

Question 3

What is the fundamental problme of causal inference?

Answer 3

Question 4

Explain the difference between homogenous and heterogenous treatment effects? How would I write this mathematically?

Answer 4

Question 5

What is the Average Treatment effect (ATE)? What is the equation for this?

Answer 5

Question 6

What is the Average Treatment on the Treated (ATT)? What is the equation for this?

Answer 6

Question 7

What is the Average Treatment on the Non-Treated (ATNT)? What is the equation for this?

Answer 7

Question 8

What is the Local Average Treatment Effect (LATE)? What is the equation for this?

Answer 8

Question 9

Explain how selection bias can mean that two groups are not the same?

Answer 9

Question 10

How can we solve the selection bias issue?

Answer 10

Randomisation

Question 11

What are the 3 key aspects that need to be controlled for in an RCT?

Answer 11

Question 12

What is Imperfect Compliance?

Answer 12

Question 13

What are the two different types of imperfect compliance?

Answer 13

Question 14

What is the Intention to Treat effect (ITT)?

Answer 14

Question 15

Explain how randomisation cna be thought of as an IV?

Answer 15

Question 16

Explain what spillovers effects are wrt to RCTs?

Answer 16

Question 17

What are the three main issues regarding external validity?

Answer 17

Question 18

What are partial and general equilibrium effects wrt RCTs?

Answer 18

Question 19

What is the Hawthorne effect?

Answer 19

Question 20

What is the John Henry effect?

Answer 20