LIMDEP Version 11 continues the expansion of our premier software
for cross section, panel data and time series analysis. Version 11
contains major new extensions to the program for estimation and
statistical analysis of econometric models and a long list of new models
and features. New features include:

Stochastic Frontier Models

Panel Data Stochastic Frontier Models

• Rayleigh model
• Belotti and Ilardi partial differences
• True fixed and random effects
• Wikstrom method of moments
• Generalized true random effects

New Partial Effects and Simulation Tools

Expanded Graphics

Histograms

• Overlay histograms with box plots or kernel density estimators
• Group up to 4 histograms

Box Plots

• Up to 40 plots in one figure
• New BOXPLOTS command
• Simultaneous plots

Bubble Plots

Kernel Density Estimator

• Several new specifications for plotting kernel density estimators
• Simultaneous plots

Treatment Effects Procedures

New Tools for Estimation and Inference

New Analysis Tools

• Over 30 new CREATE functions for panel data transformations
• Dozens of new functions for CALCULATE and MATRIX
• New random number generators

More Models and Features

• Cluster covariance matrices for all models
• Inverse hyperbolic sine model
• Fractional regression for cross section and panel data
• New panel data functions for MAXIMIZE

Data Descriptive Devices

• Obtain separate strata means for stratified data
• New commands for correlation matrices
• New TABLE command for descriptive statistics by strata
• New commands for quantiles and frequencies
• New Cronbach’s alpha correlation device

Character Data

• Observation labels
• Labellists
• Observation tags

Loglinear Models

• Generalized beta of the second kind
• Generalized gamma model

Enhanced EXECUTE and Procedures

• New specifications for bootstrap and jackknife iterations
• Block bootstrap for panel data