What tool does Angrist frequently use in his research?
Instrumental variables
Game theory
Vector autoregression
Principal component analysis
Answer
Angrist's research on education, labor economics, and public economics often uses instrumental variables to identify causal relationships. Instrumental variables are variables that are correlated with the treatment variable of interest but are not affected by the outcome variable. This allows researchers to isolate the causal effect of the treatment variable on the outcome variable.
Angrist's Analytical Odyssey: Exploring the Contributions of Joshua Angrist
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