Application
ERToller lets economists set up and run system-dynamics-type computable general equilibrium models through a graphical user interface built around TROLL.
What it is
TROLL is established software for building and simulating large economic models. It is powerful, but working with it directly is technical and depends on specialist knowledge of its environment.
ERToller is a graphical user interface designed to work around TROLL. It makes it easier to set up, run and review system-dynamics-type CGE simulations — so modelling teams can spend their time on the policy questions rather than on the tooling.
Why it matters
01
A graphical interface replaces much of the direct work in TROLL’s technical environment, lowering the barrier for economists who are not TROLL specialists.
02
Designed for computable general equilibrium models with a system-dynamics structure, where the economy evolves over time in response to policies and shocks.
03
Setting up and running policy scenarios becomes quicker and more repeatable, so more options can be tested in the time available.
Built for real scale
A national planning model can combine hundreds of exogenous variables with well over a thousand equations, organised in blocks for prices, demand, production and employment, capital formation and exports. Every policy run means setting assumptions, solving the system and reading the results across all of those blocks.
ERToller gives that work a graphical front end on top of TROLL, so modelling teams can move from policy question to model run to results with far less friction.
ERToller complements our macroeconomic and policy analysis work, where economy-wide models are used to compare reform options before they are implemented.
The next conversation
Tell us about your modelling setup and the policies you want to simulate, and we will show you how ERToller fits.
