treatment. This last condition, the so-called monotonicity condition, is often implausible. This paper starts by showing that … actually, IVs are still valid under a weaker condition than monotonicity. It then derives conditions that are sufficient for … applications where this weaker condition is applicable while monotonicity is not. Overall, this paper extends the applicability of …

"less defiers than compliers" condition is substantially weaker than monotonicity. It has two implications which are …Monotonicity is not necessary for the Wald ratio to identify a Local Average Treatment Effect. Under random assignment … and exclusion restriction, if for every value of potential outcomes there are more compliers than defiers, the Wald ratio …

for the average treatment response by imposing smoothness conditions alone, by combining them with monotonicity …

for the average treatment response by imposing smoothness conditions alone, by combining them with monotonicity …

Instrumental variables estimators typically must satisfy monotonicity conditions to be interpretable as capturing local … average treatment effects. Building on previous research that suggests monotonicity is unlikely to hold in the context of … impact on monotonicity bias of bandwidth selection in regression discontinuity (RD) designs, finding that "full sample …

Instrumental variables estimators typically must satisfy monotonicity conditions to be interpretable as capturing local … average treatment effects. Building on previous research that suggests monotonicity is unlikely to hold in the context of … impact on monotonicity bias of bandwidth selection in regression discontinuity (RD) designs, finding that "full sample …

deterministic monotonicity of the true treatment in the instrument. Even allowing for general measurement error (e.g., the …