Foundation is a flexible, modular, and composable framework to model socio-economic behaviors and dynamics with both agents and governments. This framework can be used in conjunction with reinforcement learning to learn optimal economic policies, as done by the AI Economist (https://www.einstein.ai/the-ai-economist).
This repo contains an implementation of Foundation, a framework for flexible, modular, and composable environments that model socio-economic behaviors and dynamics in a society with both agents and governments.
Foundation provides a Gym-style API:
reset
: resets the environment's state and returns the observation.step
: advances the environment by one timestep, and returns the tuple (observation, reward, done, info).This simulation can be used in conjunction with reinforcement learning to learn optimal economic policies, as detailed in the following papers:
The AI Economist: Improving Equality and Productivity with AI-Driven Tax Policies, Stephan Zheng, Alexander Trott, Sunil Srinivasa, Nikhil Naik, Melvin Gruesbeck, David C. Parkes, Richard Socher.
The AI Economist: Optimal Economic Policy Design via Two-level Deep Reinforcement Learning Stephan Zheng, Alexander Trott, Sunil Srinivasa, David C. Parkes, Richard Socher.
Building a Foundation for Data-Driven, Interpretable, and Robust Policy Design using the AI Economist Alexander Trott, Sunil Srinivasa, Douwe van der Wal, Sebastien Haneuse, Stephan Zheng.
If you use this code in your research, please cite us using this BibTeX entry:
@misc{2004.13332,
Author = {Stephan Zheng, Alexander Trott, Sunil Srinivasa, Nikhil Naik, Melvin Gruesbeck, David C. Parkes, Richard Socher},
Title = {The AI Economist: Improving Equality and Productivity with AI-Driven Tax Policies},
Year = {2020},
Eprint = {arXiv:2004.13332},
}
For more information and context, check out:
Please see our Simulation Card for a review of the intended use and ethical review of our framework.
Please see our COVID-19 Simulation Card for a review of the ethical aspects of the pandemic simulation (and as fitted for COVID-19).
If you're interested in extending this framework, discussing machine learning for economics, and collaborating on research project:
To get started, you'll need to have Python 3.7+ installed.
Simply use the Python package manager:
pip install ai-economist
git clone www.github.com/salesforce/ai-economist
conda create --name ai-economist python=3.7 --yes
conda activate ai-economist
Either
a) Edit the PYTHONPATH to include the ai-economist directory
export PYTHONPATH=<local path to ai-economist>:$PYTHONPATH
OR
b) Install as an editable Python package
cd ai-economist
pip install -e .
Useful tip: for quick access, add the following to your ~/.bashrc or ~/.bash_profile:
alias aiecon="conda activate ai-economist; cd <local path to ai-economist>"
You can then simply run aiecon
once to activate the conda environment.
To test your installation, try running:
conda activate ai-economist
python -c "import ai_economist"
To familiarize yourself with Foundation, check out the tutorials in the tutorials
folder. You can run these notebooks interactively in your browser on Google Colab.
To run these notebooks locally, you need Jupyter. See https://jupyter.readthedocs.io/en/latest/install.html for installation instructions and (https://jupyter-notebook.readthedocs.io/en/stable/ for examples of how to work with Jupyter.
ai_economist/foundation
folder.The code repository is organized into the following components:
Component | Description |
---|---|
base | Contains base classes to can be extended to define Agents, Components and Scenarios. |
agents | Agents represent economic actors in the environment. Currently, we have mobile Agents (representing workers) and a social planner (representing a government). |
entities | Endogenous and exogenous components of the environment. Endogenous entities include labor, while exogenous entity includes landmarks (such as Water and Grass) and collectible Resources (such as Wood and Stone). |
components | Components are used to add some particular dynamics to an environment. They also add action spaces that define how Agents can interact with the environment via the Component. |
scenarios | Scenarios compose Components to define the dynamics of the world. It also computes rewards and exposes states for visualization. |
ai_economist/datasets
folder.For the complete release history, see CHANGELOG.md.
Foundation and the AI Economist are released under the BSD-3 License.