BoundsObj

An object of results from computing bounds

internal

Provides several methods for computing the Quantile Treatment Effect (QTE) and Quantile Treatment Effect on the Treated (QTT). The main cases covered are (i) Treatment is randomly assigned, (ii) Treatment is as good as randomly assigned after conditioning on some covariates (also called conditional independence or selection on observables) using the methods developed in Firpo (2007) <doi:10.1111/j.1468-0262.2007.00738.x>, (iii) Identification is based on a Difference in Differences assumption (several varieties are available in the package e.g. Athey and Imbens (2006) <doi:10.1111/j.1468-0262.2006.00668.x> Callaway and Li (2019) <doi:10.3982/QE935>, Callaway, Li, and Oka (2018) <doi:10.1016/j.jeconom.2018.06.008>).

Brantly Callaway

Quantile Treatment Effects

BoundsObj function

<dl><dt>lbs</dt>
<dd>A vector of the lower bounds for each value in the support
of the outcome</dd>
<dt>ubs</dt>
<dd>A vector of the upper bounds for each value in the support
of the outcome</dd>
<dt>ub.quantiles</dt>
<dd>A vector of the same length as probs that contains
the upper bound of the quantiles of the counterfactual distribution
of untreated potential outcomes for the treated group</dd>
<dt>lb.quantiles</dt>
<dd>A vector of the same length as probs that contains
the lower bound of the quantiles of the counterfactual distribution
of untreated potential outcomes for the treated group</dd>
<dt>ub.qte</dt>
<dd>The point estimate of the upper bound for the QTE</dd>
<dt>lb.qte</dt>
<dd>The point estimate of the lower bound for the QTE</dd>
<dt>att</dt>
<dd>The ATT is point identified under the assumptions required
by the bounds method</dd>
<dt>probs</dt>
<dd>A vector of values between 0 and 1 to compute the QTET at</dd></dl>

Arguments

BoundsObj — BoundsObj

<dl>

<dt>lbs</dt>
<dd>A vector of the lower bounds for each value in the support
of the outcome</dd>


<dt>ubs</dt>
<dd>A vector of the upper bounds for each value in the support
of the outcome</dd>


<dt>ub.quantiles</dt>
<dd>A vector of the same length as probs that contains
the upper bound of the quantiles of the counterfactual distribution
of untreated potential outcomes for the treated group</dd>


<dt>lb.quantiles</dt>
<dd>A vector of the same length as probs that contains
the lower bound of the quantiles of the counterfactual distribution
of untreated potential outcomes for the treated group</dd>


<dt>ub.qte</dt>
<dd>The point estimate of the upper bound for the QTE</dd>


<dt>lb.qte</dt>
<dd>The point estimate of the lower bound for the QTE</dd>


<dt>att</dt>
<dd>The ATT is point identified under the assumptions required
by the bounds method</dd>


<dt>probs</dt>
<dd>A vector of values between 0 and 1 to compute the QTET at</dd>

</dl>

BoundsObj: BoundsObj

Description

Usage

Arguments