Questions tagged [treatment-effect]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
2 votes
1 answer
47 views

Difference in differences with one post and two treatment variables

I want to test the following hypotheses with a difference in differences (DiD) OLS model: 1. The post grant effect on the dependent variable is stronger for patents with at least one rejection than ...
user avatar
0 votes
0 answers
13 views

Diff-in-diff treatment problem

I have a cuestion about a possible aplication of a diff in diff in labor economics. I'm thinking for my master's thesis of comparing the effects of a reduction of the payroll tax in Argentina, which ...
user avatar
  • 1
1 vote
1 answer
23 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 ...
user avatar
0 votes
0 answers
16 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 ...
user avatar
  • 175
2 votes
0 answers
65 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 ...
user avatar
  • 175
1 vote
1 answer
101 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?
user avatar
0 votes
1 answer
43 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: $Y_{it}$ = $\alpha$ + $\beta$ $(pt)_{kt}$...
user avatar
1 vote
1 answer
114 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 ...
user avatar
0 votes
1 answer
35 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 ...
user avatar
4 votes
1 answer
79 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 ...
user avatar
1 vote
0 answers
14 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 ...
user avatar
1 vote
1 answer
66 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 ...
user avatar
  • 317
3 votes
1 answer
59 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 ...
user avatar
  • 193
1 vote
1 answer
346 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 ...
user avatar
3 votes
1 answer
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 ...
user avatar
  • 235
11 votes
3 answers
327 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 ...
user avatar