Panel forecasts of country-level Covid-19 infections

L Liu, HR Moon, F Schorfheide - Journal of Econometrics, 2021 - Elsevier
We use a dynamic panel data model to generate density forecasts for daily active Covid-19
infections for a panel of countries/regions. Our specification that assumes the growth rate of …

Invidious comparisons: Ranking and selection as compound decisions

J Gu, R Koenker - Econometrica, 2023 - Wiley Online Library
There is an innate human tendency, one might call it the “league table mentality,” to
construct rankings. Schools, hospitals, sports teams, movies, and myriad other objects are …

REBayes: an R package for empirical Bayes mixture methods

R Koenker, J Gu - Journal of Statistical Software, 2017 - jstatsoft.org
Abstract Models of unobserved heterogeneity, or frailty as it is commonly known in survival
analysis, can often be formulated as semiparametric mixture models and estimated by …

Forecasting with dynamic panel data models

L Liu, HR Moon, F Schorfheide - Econometrica, 2020 - Wiley Online Library
This paper considers the problem of forecasting a collection of short time series using cross‐
sectional information in panel data. We construct point predictors using Tweedie's formula …

Unobserved heterogeneity in income dynamics: An empirical Bayes perspective

J Gu, R Koenker - Journal of Business & Economic Statistics, 2017 - Taylor & Francis
Empirical Bayes methods for Gaussian compound decision problems involving longitudinal
data are considered. The new convex optimization formulation of the nonparametric (Kiefer …

A new method for estimating teacher value-added

M Gilraine, J Gu, R McMillan - 2020 - nber.org
This paper proposes a new methodology for estimating teacher value-added. Rather than
imposing a normality assumption on unobserved teacher quality (as in the standard …

Empirical partially Bayes multiple testing and compound decisions

N Ignatiadis, B Sen - arXiv preprint arXiv:2303.02887, 2023 - arxiv.org
We study multiple testing in the normal means problem with estimated variances that are
shrunk through empirical Bayes methods. The situation is asymmetric in that a prior is …

Density forecasts in panel data models: A semiparametric bayesian perspective

L Liu - Journal of Business & Economic Statistics, 2023 - Taylor & Francis
This article constructs individual-specific density forecasts for a panel of firms or households
using a dynamic linear model with common and heterogeneous coefficients as well as cross …

Approximate nonparametric maximum likelihood for mixture models: A convex optimization approach to fitting arbitrary multivariate mixing distributions

L Feng, LH Dicker - Computational Statistics & Data Analysis, 2018 - Elsevier
Nonparametric maximum likelihood (NPML) for mixture models is a technique for estimating
mixing distributions that has a long and rich history in statistics going back to the 1950s, and …

Forecasting with a panel tobit model

L Liu, HR Moon, F Schorfheide - Quantitative Economics, 2023 - Wiley Online Library
We use a dynamic panel Tobit model with heteroskedasticity to generate forecasts for a
large cross‐section of short time series of censored observations. Our fully Bayesian …