1k citations · 1.2k across the 7 of their papers we have counts for
3 papers · 1 filter
require: Package dependencies for reproducible research
Sergio Correia, Matthew P. Seay
The ability to conduct reproducible research in Stata is often limited by the lack of version control for community-contributed packages. This article introduces the require comman…
ppmlhdfe: Fast Poisson Estimation with High-Dimensional Fixed Effects
Sergio Correia, Paulo Guimarães, Thomas Zylkin
In this paper we present ppmlhdfe, a new Stata command for estimation of (pseudo) Poisson regression models with multiple high-dimensional fixed effects (HDFE). Estimation is imple…
Verifying the existence of maximum likelihood estimates for generalized linear models
Sergio Correia, Paulo Guimarães, Thomas Zylkin
A fundamental problem with nonlinear models is that maximum likelihood estimates are not guaranteed to exist. Though nonexistence is a well known problem in the binary response mod…