Gijs Dekkers

big data and econometrics seminar

Gijs Dekkers

Federal Planning Bureau, Belgium
Introduction to LIAM 2: An open source development tool for the development of static and discrete-time dynamic microsimulation models

IBD Salle 21

Îlot Bernard du Bois - Salle 21

5-9 boulevard Maurice Bourdet
13001 Marseille

Mardi 24 septembre 2019| 14:30

Ewen Gallic : ewen.gallic[at]
Pierre Michel : pierre.michel[at]


LIAM2 is an open source language for the development and use of static and dynamic (discrete-time cross-sectional ageing) models. It has been developed by the FPB, in collaboration with LISER, and is being used by various modelling teams worldwide. LIAM2 is based on Python. It is open source and therefore free of charge, and can be downloaded from the LIAM2 website
This presentation will start with discussing the goals and philosophies behind LIAM2, in a classification of microsimulation models.
The main part will however be and a hands-on demonstration of a number of simple exemplary static and dynamic microsimulation models, using a small dataset. This requires that LIAM2 and its demonstration package is downloaded from the website onto the PC used for the presentations.
The idea behind this course is not so much to convince the audience to adopt LIAM2 or not, but rather to show the use of a(ny) taylor-made language for microsimulation, and to inspire the audience for their own methodological developments.
Among other things based on de Menten, Gaëtan, Gijs Dekkers, Geert Bryon, Philippe Liégeois, Cathal O’Donoghue, 2014, LIAM2: a new open source development tool for discrete-time dynamic mi-crosimulation models, Journal of Artificial Societies and Simulation, 17(3)9.