Questions tagged [treatment-effect]
The treatment-effect tag has no usage guidance.
13
questions
2
votes
0answers
26 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 ...
2
votes
1answer
79 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?
3
votes
1answer
39 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
vote
1answer
108 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 ...
2
votes
0answers
60 views
Why the common trend assumption of subsample will be the same with the whole sample in DID?
When separating the sample into subsamples in this topic, this answer stated that
I guess parallel trend assumption must hold within municipality size.
DID with homogeneous effect typically assumes E[...
0
votes
1answer
27 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
votes
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 ...
1
vote
0answers
10 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
vote
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
votes
1answer
54 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
vote
1answer
335 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
votes
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 ...
11
votes
3answers
319 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 ...
