For each candidate fake time in placebo_times, redefines the
post indicator and estimates a 2x2 DiD on pre-true-treatment data.
Usage
morie_did_placebo_test_time(
data,
outcome,
treatment,
time,
true_treatment_time,
placebo_times,
covariates = NULL,
cluster = NULL,
alpha = 0.05
)Arguments
- data
Data frame.
- outcome, treatment, time
Column names.
- true_treatment_time
The actual treatment-onset time (data are restricted to pre-period observations).
- placebo_times
Vector of candidate fake treatment times.
- covariates
Optional character vector of covariate column names.
- cluster
Optional cluster ID column for CR1 standard errors.
- alpha
Significance level for confidence intervals (default 0.05).