Merging two panel datasets

Hello everyone, I have searched the forum but did not manage to find help for my problem. Im new to stata and still trying to learn so i ap...

Help needed to fix GMM iteration problem

I am trying to write a wrapper using GMM. When I do it manually, it converges very fast and provides me coefficients and SE. However, when I...

Margins for Interaction Term

I have run the following regression and am trying to analyse whether the initial level of Income of a country affects changes the effect of ...

What kind of a binary regression model should I choose if I work with pool or panel data?

Hello! I have a longitudinal dataset, which contains observations of individuals between 2008-2017. I want to examine only one year period...

Difference between quietly gen, quietly test and quietly regress?

Hi guys, I'm trying to replicate a paper but could not understand the meaning of the following commands. I tried googling it but still, ...

Combining a newly constructed dummy variables to one categorical variable for analysis/refcat

Dear Statalist, I have currently created four variables about family status: 1) Parents living together 2) Shared custody 3) Lonley parent...

Computing IPW estimator by hand

Hello everyone, For my project, I try to know if a certain type of policy ("pol", which is a dummy) has an impact on credit grow...

New to SSC mbitobit - Bivariate Tobit model

Dear all, Thanks to Professor Baum, A new command is available in SSC. -mbitobit-. This command re-addresses an old problem. The estimatio...

hausman test problem

Dear all, I am working with panel data and when I use the command: hausman fe re, force, I get the following: chi2(55) = (b-B)'[(V_...

Bar Chart Percentiles

Hello, I plotted a bar graph of the education level agains the mean of the average pay. Because of outliers, this grap is useless. This is...

Kolmogorov – Smirnov Test for panel database

Hello! I want to perform the Kolmogorov –Smirnov test to a panel database given that it is a frequently employed method within the literat...

Create a new variable based on observations within a group

Hello, my dataset is structered the following: clear input float (group_id won_close_dummy loss_close_dummy) 1 0 1 2 1 0 2 1 0 3 1 ...

How to load in the vertex attributes in network

Hello everyone, I am struggling to find out how to load the vertex attributes into a network? I am currently using the "nwcommands...

How to add a constraint when matching using teffects psmatch, cem or psmatch2?

Hello dear statalists, I am trying to match the houses sold at year t with similar houses sold in year t-1, t-2,..., t-5, respectively. Tha...

How to genearte the list of vars for nodes using nw2fromedge command when the number of nodes exceeds 1000

Hello, could someone help me on this question. I am using the network analysis command "nw2fromedge" to generate a one-mode networ...

Define nested loops for dependent and independent variables

I have a panel data set from 1970 to 2014 on yields and prices for four different crops. I need to regress yield on prices and the controls ...

Two Stage Least Squares with multiple Fixed Effects (using reghdfe)

Dear Statalist, I am trying to estimate a two stage least squares where both stages contain multiple fixed effects and interactions betwee...

Dropping repeated columns from a matrix

Dear statalist, I have a matrix in which two or more columns are exactly same. Is there some way of keeping one of them and dropping all o...

Subsetting twice with independent group t-tests

I'm looking to use an independent group t-test to compare the difference between students' grade estimates and their assigned grades...

Combining Shapefiles and the households survey data

Hello! I am working with the household survey with the Household Geocodes displaced at 10km buffer and an external shapefile. I converted a...

Inequality analysis

Hi, I’am new in this forum, I don’t know if I posted in good place for my question, this is my first message. I’am taking class about Inequ...

Fitting Gompertz distribution using streg

Hello, I want to know how can I restrict the hazard rate (γ) ancillary parameter to be strictly positive while fitting Gompertz distributi...

merging different levels of data

I have three datasets that I want to merge for multilevel regression. The first one is individual-level survey data (afro6new). The other tw...

Creating a balanced dataset

Dear all, I am currently attempting the following task. I have a country-product-year dataset (91 countries, 27 years from 1991-2016) whic...

Testing differences in abnormal returnsusing estudy

Hello, I am currently performing an event study. I have a Sample of 84 european banks with daily returns calculated on closing Stock prices...

prevent pagebreak in table putdocx

Hi I making summary tables in putdocx looping through 100+ cities. The problem is that pagebreaks occur in the middle of tables. It is not ...

Spmatrix creating empty weighting matrices

Hi, I'm trying to do a very standard spatial analysis. The aim is to run ML and 2SLS estimations with spregress. I've successfully...

Interquartile range

Hello, Please can anyone advise how I generate the interquartile range? I have a data example for age here: Code: . sum age, detail ...

Imputation

Hey guys, I work with panel data and I have the following problem. I've dummy variables from 2 years (2002/2007), but I need to crea...

Gologit2 autofit option

Hi, I have developed a gologit2 with autofit option. My dependent variable is Prudence coded as 1 low, 2 neutral, 3 high. I obtained two mod...

Exogenous variables in Olley and Pakes estimation (opreg)

Hello, I want to estimate a Cobb-Douglas production function with Stata's opreg command as explained here: https://journals.sagepub....

Matching within certain intervals in the list of matching variables

Hi everyone, I'm planning to match cases and controls based on age (within 3 years), gender, index date (within 3 years – index date is...

Reshape long to wide

Hi everyone, Im a newbie in stata and will really appreciate if somebody will help me. I have searched the forum, but haven't found a...

Panel GARCH Model?

Dear all, I am attempting to estimate a panel EGARCH-M model in STATA, as of yet I have had no luck. Has anyone been successful in doing s...

Year and Month fixed effects

Hi, I would like to run a regression with year month fixed effects. My data consists of year and months but I am unsure how I should inclu...

Boxplot in complex design survey

Dear Statalist users: I have a data set with weight syntax as below, How can I run a box plot with weight.? svyset province [pweight=c_w...

cmp multivariate probit

Hi, I am running a multivariate probit model using the cmp function on 4 binary dependent variables.Yesterday I ran the model several time...

How to correct the alignment of output

I am doing data cleaning and the output is hard to clean because of how it is coming out. For some tables there are a lot of things which I ...

Standard Errors FE IV Regression, Panel Data

Hello, I am working with StataIC16, and with Panel Data, where i=550 and t=6. To determine the effect of expenditure on test schore perfor...

GMM on static models

Hi, I was wondering if is it possible to use the GMM (xtabond2) on a static model. I'm aware that the GMM on dynamic models require GMM-...

qlqc30 error

Can anyone explain/solve this problem? . qlqc30, filename("mira_feb_2020_kun_baseline.dta") version(3) grp(1) (ComparisonOfTran...

randomly choosing a sub-group of items

I would like to generate a random 10 variables from a set of 42 variables and I wonder how i could do it in stata 14.2. Basically, we asked ...

Multiple industry variables

Hello, I'm using STATA 15, SE. I'm facing an issue, trying to come up with a way to control for industry fixed effects in my reg...

no room to add more variables

Hi, I am using PSID data set. I believe it is a very large data set. Stata tells me: no room to add more variables Up to 2,048 variables ...

Reshaping data from wide to long panel-data

Good day, I recently reshaped my dataset from wide to long into balanced panel dataset. Clyde Schechter has been so gracious in helping m...

Recoding Values of A Variable based on conditions

Hello, I am stuck with a problem. I hope someone can help me to find the answer. The first part of the problem is -Write codes that prints...

Bootstrap with 2 way fixed effects in panel data using reghdfe

Dear Statalist, I am estimating a model of House Price shocks on divorce rates. I am using the reghdfe command with county and time fixed ...

Calculate normalized euclidean distance

Hi all, The Euclidean distance matrix could be obtained by using Code: use http://www.stata-press.com/data/r10/iris.dta,clear matrix di...

Frequency weight in a before and after graph (twoway pccapsym)

Hi. I have a data set where I look at number of events before and after a certain time-point. I want to show this in a before and after gr...

Creating a new variable based on the value of other variables

Hi all, I have created a categorical variable (values 1 through 5) in excel based on certain characteristics of US states in a 20 year tim...

Selected Graphs for Panel Data Categories

Hi, I'm new to Stata and I'm trying to get some panel-times series graphs for selected countries. Specifically, I got a dataset co...

attnd

Hi I am using survey data and I want to use sample weights for estimating attnd and attk after running psmatch2. How can I do that? Thank...

Gravity model - PPML fixed-effect estimation

Dear all, I am doing a study on how Brexit can impact the EU export by using the gravity model. My sample is a panel data, in which 28 EU ...