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Questions tagged [synthetic-controls]

11 questions
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How can someone improve a synthetic control?

This is a broad question, I know, but I feel like it's ok to ask because I searched everywhere and I couldn't find the answer. So I was studying about synthetic control (here:…
dsbr__0
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Synthetic Control Method difference between MSPE and RMSPE

I am using Synthetic Control Method to estimate the effect some policy had. Got results and everything but when started to discuss inference method and placebo tests I have hit the wall. I got the $\frac{\mathrm{Post \; MSPE}}{\mathrm{Pre \; MSPE}}$…
bajun65537
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Difference in Difference with many treatment + control groups

All, would welcome some advice on how to model this! I've got a natural experiment whereby staff at 2 branches (of around 30) were given a new process around mid-year. So I have x thousand staff, assigned to either 1 of 2 treatment branches, or one…
Crimsoneer
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Assumptions behind Synthetic Control Methods

I am trying to estimate the impact of a minimum wage policy in a given region and I was initially thinking of only using a DiD design. However, I came across this causal inference post on synthetic control methods SCM, and I am now considering but…
nesta13
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Synthetic Control Assumptions

I have recently started looking into the synthetic control method, and found it quite appealing. But it seems as some issues do not receive a formal definition (or at least I haven't found one): Similarity of the donors: [1] claims that "it is…
Tom Beer
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power vs effect size u-shaped relationship

I'm running a simulation to assess what my minimum detectable effect size for a synthetic control study where the sample size is fixed and I'm noticing a strange relationship between power and effect size. Normally you would expect that power and…
Brett
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Constructing a synthetic control for dummies: how are the weights obtained?

In Abadie and Gardeazabal (2003), the authors describe a synthetic control as being a sum of weighted population values from non-exposed regions of Spain (i.e. regions which are not Basque Country). They: construct a synthetic control region "which…
Alexis
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Creating a synthetic control with pooled cross-sectional data

Is there a way to create a synthetic control using pooled cross-sectional data, rather than a panel? I'm analyzing a staggered reform and, so far, the methods I've found require having a panel: Ben-Michael, Feller & Rothstein 2020 (augsynth),…
luisdiego24
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Synthetic Control Weight Selection

I have implemented synthetic controls in two of my dissertation chapters. In a recent seminar, someone asked me a question I had never encountered. A cursory scan of the literature also seemingly does not address this issue. I understand…
JuliusBilly
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Heteroscedasticity in synthetic control methods

A reviewer asked me: to what extent the empirical method (Syntethic Control Method) controls for potential heteroskedasticity problems according to the problem under analysis? The problem under analysis is how oil income affects tax income in a set…
Michael Keller
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How to use causal inference to understand the impact of COVID-19 on different groups?

I'm experienced in data science but new to causal methods. I'm trying to figure out how to frame a question I want to investigate in a causal way. I'm interested in seeing if COVID-19 has impacted two similar groups (one with a certain attribute and…
sellarsellar
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