% ============================================================================ % UQO Working Paper No. 28 — Beyond One-Step Distributed Maximum Likelihood % Preamble = UQO template (Recherche-UQO/HARMONISATION.md) + amsthm environments + algorithmic % ============================================================================ \documentclass[12pt,letterpaper]{article} \usepackage[utf8]{inputenc} \usepackage[T1]{fontenc} \usepackage[english]{babel} \usepackage[letterpaper,top=1in,bottom=1in,left=1in,right=1in]{geometry} \usepackage{mathptmx} \usepackage{microtype} \usepackage{setspace} \onehalfspacing \usepackage{amsmath,amssymb,amsthm} \usepackage{mathtools} \usepackage{bm} \allowdisplaybreaks \theoremstyle{plain} \newtheorem{theorem}{Theorem} \newtheorem{proposition}{Proposition} \newtheorem{lemma}{Lemma} \newtheorem{corollary}{Corollary} \theoremstyle{definition} \newtheorem{assumption}{Assumption} \newtheorem{definition}{Definition} \theoremstyle{remark} \newtheorem{remark}{Remark} \newtheorem{example}{Example} \usepackage{booktabs} \usepackage{tabularx} \usepackage{multirow} \usepackage{threeparttable} \usepackage{longtable} \usepackage{siunitx} \sisetup{input-symbols = {()}, table-format = -1.3, parse-numbers = false} \usepackage{graphicx} \graphicspath{{figures/}} \usepackage{subcaption} \usepackage{float} \usepackage{placeins} \usepackage[dvipsnames]{xcolor} \usepackage[colorlinks=true,linkcolor=NavyBlue,citecolor=NavyBlue,urlcolor=NavyBlue,breaklinks=true]{hyperref} \usepackage[nameinlink,capitalise,noabbrev]{cleveref} \crefname{assumption}{Assumption}{Assumptions}\Crefname{assumption}{Assumption}{Assumptions} \usepackage[authoryear,round,semicolon]{natbib} \bibliographystyle{aer} \usepackage[font=small,labelfont=bf,labelsep=period,justification=justified,singlelinecheck=false]{caption} \usepackage{fancyhdr} \pagestyle{fancy} \fancyhf{} \renewcommand{\headrulewidth}{0pt} \fancyfoot[C]{\thepage} \usepackage{titlesec} \titleformat{\section}{\large\bfseries}{\thesection.}{0.5em}{} \titleformat{\subsection}{\normalsize\bfseries}{\thesubsection.}{0.5em}{} \titleformat{\subsubsection}{\normalsize\itshape}{\thesubsubsection.}{0.5em}{} \usepackage[toc,page]{appendix} \usepackage{enumitem} \setlist{nosep,leftmargin=*} \usepackage{algorithm} \usepackage{algpseudocode} \usepackage{tikz} \usetikzlibrary{arrows.meta,positioning,calc} % --- notation macros \newcommand{\E}{\mathbb{E}} \newcommand{\Var}{\operatorname{Var}} \newcommand{\Cov}{\operatorname{Cov}} \newcommand{\R}{\mathbb{R}} \newcommand{\N}{N} \newcommand{\dd}{\mathrm{d}} \newcommand{\norm}[1]{\lVert #1 \rVert} \newcommand{\abs}[1]{\lvert #1 \rvert} \newcommand{\thetahat}{\widehat{\theta}} \newcommand{\thetaN}{\widehat{\theta}_N} \newcommand{\pilot}[1]{\theta^{(0)}_{#1}} \newcommand{\iter}[2]{\theta^{(#2)}_{#1}} \newcommand{\op}{O_p} \newcommand{\smallop}{o_p} \newcommand{\pto}{\xrightarrow{\;p\;}} \newcommand{\dto}{\Rightarrow} \newcommand{\alphafr}[2]{\alpha(#1,#2)} \DeclareMathOperator*{\argmax}{arg\,max} \DeclareMathOperator{\tr}{tr} \DeclareMathOperator{\diag}{diag} \newcommand{\Jr}[1]{J_{#1}} \newcommand{\Amp}{A_r} \newcommand{\betar}{\beta_r} % ============================================================================ % METADATA % ============================================================================ \newcommand{\WPnumber}{28} \newcommand{\WPtitle}{Beyond One-Step Distributed Maximum Likelihood: Local Bias Cancellation, Global Synchronization, and the Price of Inexact Curvature} \newcommand{\WPsubtitle}{A joint order--round frontier, its sharpness in an exact model, and measured communication costs} \newcommand{\WPdate}{October 2026} \newcommand{\WPversion}{1.0} \newcommand{\WPabstract}{% \input{sections/abstract}% } \newcommand{\WPkeywords}{distributed estimation, maximum likelihood, split-sample jackknife, one-step Newton estimator, communication complexity, asymptotic equivalence, Monte Carlo} \newcommand{\WPjel}{C13, C15, C55, C63} \newcommand{\WPauthor}{Simon-Pierre Boucher} \newcommand{\WPaffiliation}{% Département des sciences administratives\\ Université du Québec en Outaouais% } \newcommand{\WPemail}{simon-pierre.boucher@uqo.ca} \newcommand{\WPaddress}{% Gatineau -- Pavillon Alexandre-Taché\\ 283, boulevard Alexandre-Taché\\ Gatineau, Québec, Canada J9A 1L8% } \hypersetup{pdftitle={Beyond One-Step Distributed Maximum Likelihood: Local Bias Cancellation, Global Synchronization, and the Price of Inexact Curvature}, pdfauthor={Simon-Pierre Boucher}} \input{tables/numbers} \begin{document} \input{sections/titlepage} \input{sections/provenance} \input{sections/introduction} \input{sections/literature} \input{sections/environment} \input{sections/construction} \input{sections/results} \input{sections/exactmodel} \input{sections/inexact} \input{sections/costmodel} \input{sections/montecarlo} \input{sections/benchmarks} \input{sections/robustness} \input{sections/discussion} \input{sections/conclusion} \newpage \bibliography{references} \begin{appendices} \input{appendices/proofs} \input{appendices/exponential} \input{appendices/algorithms} \input{appendices/replication} \end{appendices} \end{document}