The purpose of this presentation is to introduce a new user-written code that allows for measuring poverty in a panel of individuals. It complements existing poverty codes for a cross-section of individuals (e.g. povdeco, poverty) by producing a new family of indices proposed by Gradín, Cantó...

As with most programming languages, there can be multiple ways to do a task in Stata. Using modern CPUs with adequate memory, most Stata data processing commands run so quickly on small- or moderate-sized data sets that it is impossible to tell whether one command performs more efficiently than...

We use Stata to obtain the linear maximum entropy estimator developed by Golan, Judge and Miller (1996). We use the STATA optimize function to illustrate maximum entropy estimation in an unrestricted linear regression model. Next, we estimate the model with parameter inequality restrictions to...

The paper aims at analyzing the Exchange Rate Pass-Through mechanism for the Mexican economy and is carried out using STATA under two time series frameworks. The first framework is a recursive structural VAR (SVAR) model which, unlike the traditional VAR model, allows us to impose additional...

The stereotype logistic regression model for a categorical dependent variable is often described as a compromise between the multinomial and proportional-odds logistic models, and has many attractive features. Among these are the ability to test the adequacy of the model fit compared to the...

Introducing generalized SEM: (1) SEM with generalized linear response variables, and (2) SEM with multilevel mixed effects, whether linear or generalized linear. Generalized linear response variables mean you can now fit probit, logit, Poisson, multinomial logistic, ordered logit, ordered...

Klein and Vella (2010) propose an estimator to fit a triangular system of two simultaneous linear equations with a single endogenous regressor. Models of this form are generally analyzed with two-stage least squares or IV methods, which require one or more exclusion restriction. In practice, the...

Previous trial has shown that starting ART therapy earlier (‘Early’) rather than waiting for onset of symptoms (‘Standard’) in HIV patients significantly decreases mortality. As a follow-up, researchers are interested in determining if ‘Early’ therapy significantly decreases time to...

Testing for the presence of autocorrelation in a time series is a common task for researchers working with time series data. The standard Q test statistic, introduced by Box and Pierce (1970) and refined by Ljung and Box (1978), is applicable to univariate time series and to testing for...

Inspired in the R library 'snow' and to be used in multicore CPUs, parallel implements parallel computing methods through an OS's shell scripting (using Stata in batch mode) to accelerate computations. By splitting the dataset into a determined number of clusters this module repeats a task...