Questions tagged [applied-econometrics]

Use this tag to discuss empirical papers and issues arising when applying theoretical models to data. For theoretical econometric issues, use the `econometrics` tag

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18
votes
2answers
542 views

How accurate is duality?

In economic theory we know that with the use of some calculus, Hotellings Lemma and Sheppards lemma we can derive a given firms supply function and in term its Profit function. With data of a given ...
12
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4answers
868 views

What are some good repositories for economic data

Economic data is a very broad concept. It can include discrete preference relation data-sets as well as extensive time series data. But it is important that theories are tested against data, and the ...
10
votes
2answers
6k views

Difference-in-differences in 2SLS regression

Usually when we do a difference-in-differences estimation, we do it in a OLS reduced form as follows: $$ Y_{it}=\alpha After_t+\gamma Treatment_i+\delta After*Treatment_{i,t}+X_{it}\beta+\epsilon_{i,...
8
votes
3answers
1k views

Citing non-economics studies in an economics research paper

I am currently working on a paper in economics that has some dimensions that discuss women's social value. As is the case in developing countries a lot of economic studies do not exist whereas there ...
8
votes
4answers
436 views

Estimating CES utility (not production) function parameters

The CES utility function has the form \begin{equation} u(x_1,\dots,x_n)=\left[\sum_{i=1}^n\alpha_ix_i^\rho\right]^{1/\rho}, \end{equation} where $\alpha_i$ is the consumption share parameter and $\...
8
votes
3answers
16k views

What does it mean to make an identification assumption?

Trying to understand this problem: Suppose you had access to a dataset that follows individuals from adolescence throughout adulthood. Each year, you observe earnings, educational attainment, ...
8
votes
3answers
2k views

Identifying assumption meaning

I am hoping to get a good explanation regarding what is meant by an identifying assumption. In many articles, under empirical strategy, authors state that: we exploit firm level variation to identify ...
8
votes
1answer
5k views

How should one determine the proper number of lags in a time series regression?

I am using time series data in economic model estimation. I want determine proper lag for Error Correcting Model (ECM) model for example. I can check AIC, SC and HQ criterion for determine proper lag. ...
7
votes
2answers
394 views

Cobb-Douglas production function with expenditures rather than units

I want to estimate a standard Cobb-Douglas production function of the form $ Y=AK^{\alpha}L^{\beta}$. However, I only have data on labour expenditures, not units of labour. I don't have data on the ...
7
votes
1answer
361 views

Is there empirical evidence on usability of Cobb-Douglas production function?

I am trying to estimate a simple Cobb-Douglas production function $Y=AL^{\alpha}K^{\beta}$ on US data and get an unrealistic estimate of $\alpha$ and a high p-value for $\beta$. Structure of ...
7
votes
1answer
142 views

Replicate Blundell and Bond (2000) results using R

I want to replicate Blundell and Bond (2000) Table III in R. I'm using the function pgmm from package plm, which (apparently) ...
6
votes
2answers
169 views

Are there conventions in economics for coding the distance between states?

I know there are lots of gravity models in economics that take as an input distance between countries. My understanding is distance is typically coded based on the distance between capital cities, ...
6
votes
1answer
466 views

Omitted variables in gravity model

I'm trying to construct a gravity model for EU trade flows using a panel dataset, but am suffering from what appears to be a persistent omitted variable problem. My residuals display a queer log-like, ...
6
votes
2answers
152 views

Using another person's guess as an IV

In Estimates of the Economic Return to Schooling from a New Sample of Twins by Orley Ashenfelter and Alan Krueger, they correct sampling error with an IV. They claim that their results imply a larger ...
6
votes
1answer
174 views

How to evaluate whether the synthetic control is good enough

I'm using the synthetic control method to evaluate a state-level policy (using synth package in Stata). I've read the seminal ADH papers on CA tobacco & Germany reunification, but I still don't ...
6
votes
2answers
6k views

Why does slowly decaying ACF indicate that a time series is non-stationary?

I am a student studying time series econometric online and looking for help talking around some of the principles. There is one point I am trying to understand better. I've come across some ...
6
votes
1answer
66 views

What type of graph can be hepful to explain the type of errors that should be used?

I have a regression of wage on several variables, such as education, marriage and so on. I want to explain that it would be a better idea to use cluster errors, since we expect the wage to be ...
6
votes
1answer
631 views

Errata for Wooldridge graduate econometrics book

Does anyone know where I can find an errata to the 2nd edition (2010) of «Econometric Analysis of Cross-Section and Panel Data» by Wooldridge? I've tried the accompanying website, but I could not find ...
5
votes
2answers
1k views

How do we estimate production functions?

In a standard economics education we learn about production functions, indicating an output as a function of a given input of capital and labour. An average model looks like this: (1) $F(L,K)=L^{...
5
votes
2answers
929 views

Dealing with Missing Data when Testing the CAPM

Question How should I deal with missing data when trying to test the CAPM? Specifically, there are some stocks that are newly listed and/or delisted at any time. I don't want to exclude assets for ...
5
votes
2answers
166 views

Research at the county-level: Macro or Micro?

Is research at the county-level considered applied micro or applied micro? The standard undergrad definitions ("micro" = "individual", "macro" = "nation") are of no help with units of measurement ...
5
votes
1answer
86 views

Variance Decomposition of Wage Equation

I am reading two recent papers studying between-firm and within-firm wage inequality, Barth et al 2016 (hereafter BBDF) and Song et al 2019 (hereafter SPGBV). I am confused by the different variance ...
5
votes
2answers
819 views

Problems with Representative Sampling

I am curious: what exactly are the problems caused by using representative sampling rather than random sampling whenever creating a subsample of large dataset for nonexperimental analysis. Further, ...
5
votes
1answer
135 views

Insignificant Interaction effect in applied econometrics (multinomial logit regression)

I'm currently writing my master's thesis where I'm applying a multinomial logit regression with interactions effect. The model I'm using is $$ P(y=j) = exp(xb_j)/(1+∑exp(xb_h)) $$ where $$ xb_j =...
4
votes
2answers
668 views

Why we need at least 40 groups to be properly clustered?

From this discussion, I deem that we need approximately 40 groups for clustering. For example, if we want to clustered by industry, we need at least 40 industries, or if we want to cluster by year, we ...
4
votes
1answer
231 views

Is a hedonic regression a reduced-form?

If house prices are a function of location, physical characteristics and an error term i.e. house_price = f (location, physical, e) And I estimate a regression with the log of house price as my ...
4
votes
1answer
8k views

How to interpret "scale efficiency" in DEA?

I am reading the book Benchmarking with DEA, SFA, and R by Bogetoft and Otto. In Section 4.8 they discuss the concept of scale efficiency, and I am having trouble interpreting this concept. The ...
4
votes
1answer
72 views

Choice between dummy variables and Likert scale in Linear Regression

I want to run a linear regression based on the data gathered using a questionnaire. Several of the questions have the following form: How much do you spend on xyz in a month? a. Less than \$50 b. \$50 ...
4
votes
1answer
38 views

Many or few variables when testing for Granger causality?

I am reading Levendis "Time Series Econometrics: Learning Through Replication" (2018) and there are two statements about Granger causality that kinda confuses me. The statements themselves ...
4
votes
1answer
1k views

To use seasonally adjusted data or not seasonally adjust data?

Im currently doing research using some macroeconomic data. I just want to know what are the pros and cons of using seasonally adjusted/non-seasonally adjusted data in terms of forecasting.
4
votes
1answer
264 views

The Econometrics of the Stone Geary Production function

The Stone-Gerry production function generally takes a form of: $$f(x_{i})=\prod_{i=1}^n(x_{i}-a_{i})^{\gamma_i}$$ where $x_i$ represents all inputs in the model, $a_i$ is a constant representing the ...
4
votes
2answers
606 views

Bayesian vs. Frequentist Approach

I hope this question is not too general in nature; I just wanted to ask the members of this community their opinion on the following question: How can one choose between the Bayesian approach and the ...
4
votes
1answer
100 views

Demand function estimation

The model specification is: $$D_{ij} = A + aP_{ij} + bY_{ij} + cN_{ij} + e_{ij}$$ where: $i, j$ = $i$-th year, $j$-th month, $D$= demand (outgoing minutes) $P$ = average price of call, $Y$ = ...
4
votes
1answer
86 views

The Household Production Function

I was wondering whether someone can explain the household production function (HPF). Specifically, the variant presented in Patanayak et al (2005). The paper uses the HPF to determine household ...
4
votes
1answer
81 views

Controlling for interaction effects

In a recent paper, Edelman et al. examine (amongst other things) how discrimination on AirBnB varies with the characteristics of hosts. First, they conduct a field experiment which involves sending a ...
4
votes
0answers
39 views

comparison of micro production functions

There are many different production function estimation methods, relevant for micro and firm data. For example Olley-Pakes, Levinsohn-Petrin, Ackerberg et al., Wooldridge etc. But does anyone know of ...
4
votes
0answers
69 views

How to econometrically identify perfect complements in production?

The production $$f(x_i,...,x_n)=\min\{x_i,...,x_n\}$$ is pretty straight forward and usually with smaller size data sets and can usually be picked up on rather quickly in an intuitive sense. ...
4
votes
0answers
77 views

R reproducible example, restrictions on cointegrating equations

The code given below estimates a VEC model with 4 cointegrating vectors. It is a reproducible code, so just copy and paste into your R console (or script editor). ...
3
votes
1answer
47 views

Including an endogenous covariate in a regression model as a control to estimate the effect of another variable of interest

I am interested in the effect of an independent variable $x$ on a dependent variable $y$, like so $$ y = \beta_0 + \beta_1 x + e $$ where $e$ is the error term. Now $x$ includes two effects $z_1$ and $...
3
votes
2answers
71 views

In VAR models, do variations in the variables come solely from shocks?

In DSGE models, if you shut all shocks to zero, then the variables have zero variations. Thus, they just equal their steady-state values for all periods. So the series for all variables are just flat ...
3
votes
1answer
813 views

What are the main differences among xtreg, areg, reghdfe?

Normally, when I run regressions for panel data in Stata using these three commands (xtreg,areg, ...
3
votes
2answers
58 views

Applying ensemble modelling to VAR models

It is ok to apply ensemble modeling to VAR models? I mean, using several specifications of the VAR model instead of just one specification. So, for example, if you want to check that $x_{t-1},...,x_{t-...
3
votes
1answer
745 views

What is a good proxy for government quality?

Is it ok to use corruption as a proxy for government quality?
3
votes
1answer
228 views

Synthetic Control Method

I need to study Synthetic Control Method for my term paper. So can anyone suggest some book/literature from where I can study Synthetic Control Method on my own?.
3
votes
1answer
206 views

Difference-in-differences with long time horizon and repeated treatments

I have a high-frequency panel dataset on the order of $i=150$ and $t=5000$. I am interested in studying the causal impact of a treatment with the following characteristics: The same unit can be ...
3
votes
3answers
414 views

Detecting the presence of measurement error

When can I know that I'm in the presence of measurement errors? i.e., when can I know that I should use a measurement error model(error-in-variables model)? Are there any statistical tests for ...
3
votes
1answer
141 views

Papers with insignificant results

There are a few papers that I have seen that publish insiginficant results, such as responses (see Easterly's response published in the AER to Burnside and Dollars World Bank paper titled 'Aid, ...
3
votes
2answers
309 views

How to detect if Ergodicity, Stationarity and Martingale. dif. sequence are satisfied?

I'm not sure, but I think I've read somewhere that because the Classical Linear Regression model assumes to have a random sample, when researchers think they might not be in presence of a sample with ...
3
votes
1answer
75 views

Annual Data and Heteroscedasticity (Engle's ARCH test)

GARCH models are often applied to financial time series (daily, weekly or monthly stock returns). What about lower frequency such as quarterly and annual time series? This could include macroeconomic ...
3
votes
1answer
49 views

Rule of thumb for confidence level

Typically in statistical software, the default confidence level is 95%. The higher the better, I suppose. But this is still not a rule of thumb, right? In Stock and Watson's paper (https://www.aeaweb....

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