## Electronic Journal of Statistics

- Electron. J. Statist.
- Volume 8, Number 1 (2014), 1641-1660.

### Estimating equations and diagnostic techniques applied to zero-inflated models for panel data

Maria Kelly Venezuela and Rinaldo Artes

#### Abstract

Many practical studies analyze semi-continuous longitudinal data using, for example, ZAIG (Zero-Adjusted Inverse Gaussian) or BEZI (Beta Zero-Inflated) models as marginal distributions. We develop herein estimating equations analogous to Liang and Zeger’s estimating equation of independence and related diagnostic techniques for regression models, with zero-inflated response variable and panel data structure. A simulation study to evaluate some properties of the estimators obtained from the estimating equations and two applications with real data are presented.

#### Article information

**Source**

Electron. J. Statist., Volume 8, Number 1 (2014), 1641-1660.

**Dates**

First available in Project Euclid: 8 September 2014

**Permanent link to this document**

https://projecteuclid.org/euclid.ejs/1410181227

**Digital Object Identifier**

doi:10.1214/14-EJS936

**Mathematical Reviews number (MathSciNet)**

MR3263133

**Zentralblatt MATH identifier**

1297.62171

**Subjects**

Primary: 62J20: Diagnostics

Secondary: 62J12: Generalized linear models 62H12: Estimation

**Keywords**

Estimating equations diagnostic techniques zero inflated data

#### Citation

Venezuela, Maria Kelly; Artes, Rinaldo. Estimating equations and diagnostic techniques applied to zero-inflated models for panel data. Electron. J. Statist. 8 (2014), no. 1, 1641--1660. doi:10.1214/14-EJS936. https://projecteuclid.org/euclid.ejs/1410181227