Biogeme

Biogeme is a free and open-source software package for the estimation of discrete choice models. Developed in Python, it is designed for econometric modeling, particularly in fields like transportation, marketing, and environmental economics where individual choices among alternatives are analyzed. The software allows users to specify and estimate various models, including multinomial logit, nested logit, and mixed logit models. It supports a range of data formats and provides tools for model diagnostics and interpretation.

The core functionality of Biogeme lies in its ability to perform maximum likelihood estimation of these choice models. Users define the model structure, utility functions, and relevant parameters within Python scripts. Biogeme then uses numerical optimization techniques to find the parameter values that best fit the observed data. The package offers flexibility in defining complex utility specifications, including interactions between variables and socio-demographic attributes.

Biogeme is known for its extensibility, allowing researchers to implement custom model structures or estimation procedures. Its open-source nature encourages collaboration and continuous development within the econometric modeling community. The software is typically used by researchers and practitioners who need to analyze and predict choices based on underlying preferences and constraints, making it a valuable tool for understanding and modeling human behavior in various decision-making contexts.