Questions tagged [treatment-effect]

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22 views

Asking for the definition of various types of treatment?

Borusyak (2021) writes the following: We further discuss the implications of our results when treatment is simultaneous rather than staggered, when it can switch on and off, and when multiple ...
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0answers
15 views

What can explain a wrong sign on difference-in-difference estimator?

I am trying to estimate the casual impact of treatment T on outcome Y based on an unbalanced panel data. The data consists of two subsamples: subsample A and subsample B. Based on context of the ...
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0answers
36 views

Missing values in difference-in-differences

To give a background of the problem: I'm performing a difference-in-differences analysis to estimate the effect of a treatment, say A. I have a panel data with 5 rounds and about 3000 observations in ...
1
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1answer
99 views

Is there any intuitive example for multi-valued treatment?

The definition from Wikipedia about multi-valued treatment is quite ambiguous to me, is there any other simpler definition or intuitive example for this term?
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1answer
41 views

What should we conclude when the significant levels are different but the sign are similar among coefficients of variable of interest?

I saw the impact of anticollusion laws on dependent variables Y across the country by using generalized DID by following Dasgupta, 2019. The identification is: $Y_{it}$ = $\alpha$ + $\beta$ $(pt)_{kt}$...
1
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1answer
109 views

IV estimate for entire sample is larger than IV estimates for subsets of sample?

I am using two-stage least squares to estimate a local average treatment effect, with 'treatment' being the endogenous variable and 'assignment to treatment' being the instrument. If I use my full ...
0
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1answer
30 views

Synthetic control question on donors

I'm using synthetic control methods. The treatment group has covariates that are the extrema of the values across itself and all potential donor units. So, say, on covariate $x_1$, the treatment unit ...
4
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1answer
77 views

Matching unpopularity

It seems that in economics, matching techniques (such as pscore, covariate matching, regression adjustment) are not as popular as selection-on-unobservables techniques (such as DiD, IV). Indeed I ...
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0answers
11 views

How to calculate and interpret a marginal treatment effect (local instrumental variable)? (Intuition through simple example.)

I am working on the intuition behind local instrumental variables (LIV), also known as the marginal treatment effect (MTE). I have worked some time on this and would benefit from solving a simple. I ...
1
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1answer
37 views

CIA and Exclusion restriction

I have recently got myself confused about CIA and wondered if somebody could perhaps help me disentangle my thoughts. Consider the regression $Y_i = \alpha_0 + \Delta D_i + \beta X_i + \eta_i$ Where ...
3
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1answer
57 views

Imbens and Angrist (1994): the $D_i(z)$ variables

I'm referring to the Econometrica (1994) paper by Imbens and Angrist. In particular, I don't really understand the random variables $D_i(z)$ (defined on page 468). Could you please provide me with ...
1
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1answer
336 views

What is a good AUSTERITY indicator?

I am writing a paper on European poverty and I am using a treatment control setup similar to Difference-in-Difference methods. Now, since the data I am using is rather recent, I would like to ...
3
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1answer
1k views

How encouragement design works practically?

I'm trying to understand the encouragement design but I have some doubts. For example, if I want to introduce a voucher for teachers that can be used for professional development(the treatment) and I ...
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3answers
321 views

Self-selection bias during the course of experiments

Suppose you are running a randomized experiment to assess the effect of $X$, say some training program for unemployed people, on $Y$, say the chance of finding a job in the coming year. Suppose also ...