handle_moderating_variable

handles moderating variable calculations: In practice, this just involves slicing the data up according to the moderator, calling PanelEstimate() and putting everything back together This function creates the sets of objects on which PanelEstimate() will be called. It identifies the set of valid values the moderating variable can take on.

internal

Implements a set of methodological tools
that enable researchers to apply matching methods to
time-series cross-sectional data. Imai, Kim, and Wang
(2023) <http://web.mit.edu/insong/www/pdf/tscs.pdf>
proposes a nonparametric generalization of the
difference-in-differences estimator, which does not rely
on the linearity assumption as often done in
practice. Researchers first select a method of matching
each treated observation for a given unit in a
particular time period with control observations from
other units in the same time period that have a similar
treatment and covariate history. These methods include
standard matching methods based on propensity score and
Mahalanobis distance, as well as weighting methods. Once
matching and refinement is done,
treatment effects can be estimated with
standard errors. The package also offers diagnostics for researchers to assess the quality
of their results.

In Kim

PanelMatch

Matching Methods for Causal Inference with Time-Series
Cross-Sectional Data

In Song Kim

Adam Rauh

Erik Wang

Kosuke Imai

handle_moderating_variable function

<dl><dt>ordered.data</dt>
<dd>data.frame</dd>
<dt>att.sets</dt>
<dd>matched.set object for the ATT or ART</dd>
<dt>atc.sets</dt>
<dd>matched.set object for the ATC</dd>
<dt>PM.object</dt>
<dd>PanelMatch object</dd>
<dt>moderator</dt>
<dd>string specifying the name of the moderating variable</dd>
<dt>unit.id</dt>
<dd>string specifying the unit id variable</dd>
<dt>time.id</dt>
<dd>string specifying the time id variable</dd>
<dt>qoi.in</dt>
<dd>string specifying the QOI</dd></dl>

Arguments

handle_moderating_variable — handle_moderating_variable

<dl>

<dt>ordered.data</dt>
<dd>data.frame</dd>


<dt>att.sets</dt>
<dd>matched.set object for the ATT or ART</dd>


<dt>atc.sets</dt>
<dd>matched.set object for the ATC</dd>


<dt>PM.object</dt>
<dd>PanelMatch object</dd>


<dt>moderator</dt>
<dd>string specifying the name of the moderating variable</dd>


<dt>unit.id</dt>
<dd>string specifying the unit id variable</dd>


<dt>time.id</dt>
<dd>string specifying the time id variable</dd>


<dt>qoi.in</dt>
<dd>string specifying the QOI</dd>

</dl>

handle_moderating_variable: handle_moderating_variable

Description

Usage

Value

Arguments