A Generalized Method of Moderation for Consumption under Uncertainty

Deep learning methods for solving dynamic economic models offer computational advantages but produce ‘black box’ solutions. This paper develops Economics Informed Neural Networks (EINNs) through a generalized method of moderation that embeds behavioral bounds directly into neural network architectures.

January 2025 · Alan Lujan

The Method of Moderation

Consumer spending lies between pessimistic and optimistic extremes. This paper uses that fact to redefine the search space for optimal consumption rules.

January 2025 · Christopher Carroll, Karsten Chipeniuk, Alan Lujan, Kiichi Tokuoka, Weifeng Wu

multinterp: A Unified Interface for Multivariate Interpolation

The multinterp Python package offers a unified and versatile solution for multivariate interpolation, addressing the limitations of existing fragmented tools.

July 2024 · Alan Lujan

Households and Market Stability

Novel framework combining macroeconomic and agent-based financial market modeling to study financial stability with household agents.

January 2024 · Sebastian Benthall, Christopher Carroll, Zachary David, John Liechty, Alan Lujan, Nathan Palmer, Nicholas Skar-Gislinge

Reproducibility Standards in Economics

Initiative focused on enhancing reproducibility in computational economics research, emphasizing integration of software development and research publication.

January 2024 · Alan Lujan, Christopher Carroll

EGMⁿ: The Sequential Endogenous Grid Method

Efficient method for solving heterogeneous agent models with multiple decisions, extending the Endogenous Grid Method with Gaussian Process Regression for unstructured grids.

January 2023 · Alan Lujan

Structural Estimation of Life Cycle Models with Wealth in the Utility Function

Enhances heterogeneous agent models by integrating life cycle considerations and wealth-dependent utility into structural estimation.

January 2023 · Alan Lujan

The Life Cycle Model Is Ready for Prime Time

Traditional retirement models suggest spending all savings by end of life. This paper shows new models with wealth in utility provide more realistic guidance.

January 2023 · Christopher Carroll, Alan Lujan, Matthew N. White

Portfolio Choice and Risky Housing

State-of-the-art computational model of optimal choices for household spending, investing, and home buying. First open source toolkit for this class of models.

January 2022 · Christopher Carroll, Alan Lujan, Mateo Velásquez Giraldo

Simulating Heterogeneous Portfolio Choices and Financial Market Outcomes

Uses a unique stock market model to show how investors with different expectations impact financial stability. Supported by DARPA.

January 2022 · Sebastian Benthall, Christopher Carroll, Zachary David, John Liechty, Alan Lujan, Christopher McComb, Nicholas Skar-Gislinge