Deep Learning Macroeconomics

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1. Proche Pas pertinent

   On Bayesian Filtering for Markov Regime Switching Models

   Nigar Hashimzade, Oleg Kirsanov, Tatiana Kirsanova et al. · 2024 · Économétrie · Résumé IA disponible

   Résumé scientifique

   This paper presents a framework for empirical analysis of dynamic macroeconomic models using Bayesian filtering, with a specific focus on the state-space formulation of Dynamic Stochastic General Equilibrium (DSGE) models with multiple regimes. We outline the theoretical foundations of model estimation, provide the details of two families of powerful multiple-regime filters, IMM and GPB, and construct corresponding multiple-regime smoothers. A simulation exercise, based on a prototypical New Keynesian DSGE model, is used to demonstrate the computational robustness of the proposed filters and smoothers and evaluate their accuracy and speed for a selection of filters from each family. We show …

2. Proche Pas pertinent

   Modeling Macroeconomic Variations After COVID-19

   Serena Ng · 2021 · Économétrie · Résumé IA disponible

   Résumé scientifique

   The coronavirus is a global event of historical proportions and just a few months changed the time series properties of the data in ways that make many pre-covid forecasting models inadequate. It also creates a new problem for estimation of economic factors and dynamic causal effects because the variations around the outbreak can be interpreted as outliers, as shifts to the distribution of existing shocks, or as addition of new shocks. I take the latter view and use covid indicators as controls to 'de-covid' the data prior to estimation. I find that economic uncertainty remains high at the end of 2020 even though real economic activity has recovered and covid uncertainty has receded. Dynamic…

3. Apparenté Pas pertinent

   Econometric Inference with Machine-Learned Proxies: Partial Identification via Data Combination

   Lixiong Li · 2026 · Économétrie · Résumé IA disponible

   Résumé scientifique

   Empirical researchers increasingly use upstream machine-learning (ML) methods to construct proxies for latent target variables from complex, unstructured data. A naive plug-in use of such proxies in downstream econometric models, however, can lead to biased estimation and invalid inference. This paper develops a framework for partial identification and inference in general moment models with ML-generated proxies. Our approach does not require restrictive assumptions on the upstream ML procedure, such as consistency or known convergence rates, nor does it require a complete validation sample containing all variables used in the downstream analysis. Instead, we assume access to two datasets: a…

4. Apparenté Pas pertinent

   A Descriptive Method of Firm Size Transition Dynamics Using Markov Chain

   Boyang You, Kerry Papps · 2022 · Économétrie · Résumé IA disponible

   Résumé scientifique

   Social employment, which is mostly carried by firms of different types, determines the prosperity and stability of a country. As time passing, the fluctuations of firm employment can reflect the process of creating or destroying jobs. Therefore, it is instructive to investigate the firm employment (size) dynamics. Drawing on the firm-level panel data extracted from the Chinese Industrial Enterprises Database 1998-2013, this paper proposes a Markov-chain-based descriptive approach to clearly demonstrate the firm size transfer dynamics between different size categories. With this method, any firm size transition path in a short time period can be intuitively demonstrated. Furthermore, by utili…

5. Apparenté Pas pertinent

   Robust decision-making under risk and ambiguity

   Maximilian Blesch, Philipp Eisenhauer · 2021 · Économétrie · Résumé IA disponible

   Résumé scientifique

   Economists often estimate economic models on data and use the point estimates as a stand-in for the truth when studying the model's implications for optimal decision-making. This practice ignores model ambiguity, exposes the decision problem to misspecification, and ultimately leads to post-decision disappointment. Using statistical decision theory, we develop a framework to explore, evaluate, and optimize robust decision rules that explicitly account for estimation uncertainty. We show how to operationalize our analysis by studying robust decisions in a stochastic dynamic investment model in which a decision-maker directly accounts for uncertainty in the model's transition dynamics.

6. Apparenté Pas pertinent

   Machine Learning Estimation of Heterogeneous Treatment Effects with Instruments

   Vasilis Syrgkanis, Victor Lei, Miruna Oprescu et al. · 2019 · Économétrie · Résumé IA disponible

   Résumé scientifique

   We consider the estimation of heterogeneous treatment effects with arbitrary machine learning methods in the presence of unobserved confounders with the aid of a valid instrument. Such settings arise in A/B tests with an intent-to-treat structure, where the experimenter randomizes over which user will receive a recommendation to take an action, and we are interested in the effect of the downstream action. We develop a statistical learning approach to the estimation of heterogeneous effects, reducing the problem to the minimization of an appropriate loss function that depends on a set of auxiliary models (each corresponding to a separate prediction task). The reduction enables the use of all …

7. Apparenté Pas pertinent

   Adaptive Pricing in Insurance: Generalized Linear Models and Gaussian Process Regression Approaches

   Yuqing Zhang, Neil Walton · 2019 · Économétrie · Résumé IA disponible

   Résumé scientifique

   We study the application of dynamic pricing to insurance. We view this as an online revenue management problem where the insurance company looks to set prices to optimize the long-run revenue from selling a new insurance product. We develop two pricing models: an adaptive Generalized Linear Model (GLM) and an adaptive Gaussian Process (GP) regression model. Both balance between exploration, where we choose prices in order to learn the distribution of demands & claims for the insurance product, and exploitation, where we myopically choose the best price from the information gathered so far. The performance of the pricing policies is measured in terms of regret: the expected revenue loss cause…

8. Apparenté Pas pertinent

   A multi-cell experimental design to recover policy relevant treatment effects, with an application to online advertising

   Caio Waisman, Brett R. Gordon · 2023 · Économétrie · Résumé IA disponible

   Résumé scientifique

   Experiments are an important tool to measure the impacts of interventions. However, in experimental settings with one-sided noncompliance, extant empirical approaches may not produce the estimates a decision-maker needs to solve their problem. For example, these experimental designs are common in digital advertising settings, but they are uninformative of decisions regarding the intensive margin -- how much should be spent or how many consumers should be reached with a campaign. We propose a solution that combines a novel multi-cell experimental design with modern estimation techniques that enables decision-makers to recover enough information to solve problems with an intensive margin. Our …