MEANING
In an instrumental-variable design, a condition that the instrument does not shift treatment uptake in opposite directions for different individuals.
Use it for
Treatment response to an instrument moves in one direction, not opposing directions.Make an identifying restriction explicit before describing a complier effect.
Words that belong together
- monotonicity assumption
- assume monotonicity
- no-defiers restriction
On the page
The paper stated its monotonicity assumption before interpreting the IV estimate as an effect among compliers.
Nearby words
Word forms
- Base
- monotonicity assumption
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Usage notes
In the binary-instrument setting it rules out defiers, whose responses oppose compliers; it is not monotonicity of the outcome.
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