Reproducible research is one of many names for the same concept: writing a single report document that contains both the report and the commands needed to produce the results and graphics contained in the report. It is called reproducible research because any interested researcher can then...

In this talk, I discuss problems experienced and solutions developed with Stata, using remote access to a big dataset (around 10GB) of the Institute for Employment Research (IAB). I focus on two topics. The first problem is that of not directly controlling the data. The solution here is to...

This overview of implementing quasi-experimental methods of estimating causal impacts (panel methods, matching estimators, instrumental variables, and regression discontinuity) emphasizes practical considerations and Stata-specific approaches. I pay particular attention to the regression...

At the heart of many econometric models is a linear function and a normal error. Examples include the classical small-sample linear regression model and the probit, ordered probit, multinomial probit, tobit, interval regression, and truncated distribution regression models. Because the normal...

I have researched the economics of interactions on Statalist, based on the full population of exchanges from 1st of January to 30th of April 2009. Both the "demand side" - the questions asked on the list - and the "supply side" - the answers provided - are examined. Along the way, I have paid...

Stata 11 has new command gmm for estimating parameters by the generalized method of moments (GMM). gmm can estimate the parameters of linear and nonlinear models for cross-sectional, panel, and time-series data. In this presentation, I provide an introduction to GMM and to the gmm command.

In this presentation, I provide a brief overview of quasiexperimental methods of estimating causal impacts using Stata: panel data, matching and reweighting, instrumental variables, and regression discontinuity designs, emphasizing practical considerations. I pay particular attention to the...

In this presentation, I cover how to use Stata for survey data analysis assuming a fixed population. We will begin by reviewing the sampling methods used to collect survey data, and how they affect the estimation of totals, ratios, and regression coefficients. We will then cover the three...

In this presentation, we introduce the command frcount for estimating the fractional response model with an endogenous count variable. The endogeneity of the right-hand-side count variable is controlled for under the presence of unobserved heterogeneity. We briefly discuss the model, estimation...

Abstract genetic association studies often explore the relationship between diseases and collections of contiguous genetic markers located on the same chromosome (known as haplotypes). Haplotypes are usually not observed directly but are inferred statistically using a variety of algorithms. One...