{"id":21,"date":"2018-09-20T10:43:49","date_gmt":"2018-09-20T14:43:49","guid":{"rendered":"https:\/\/sites.bu.edu\/qu\/?page_id=21"},"modified":"2026-02-13T16:21:19","modified_gmt":"2026-02-13T21:21:19","slug":"publications","status":"publish","type":"page","link":"https:\/\/sites.bu.edu\/qu\/publications\/","title":{"rendered":"Refereed Publications"},"content":{"rendered":"<ol>\n<li><strong><a href=\"https:\/\/url6649.tandfonline.com\/ls\/click?upn=u001.Z4WTLvhKhuNdT-2BZ6FY7pIE1qPnuAh-2BFdltgJIae950BfKiA8F5Txait-2BTEJPg7fogNqH4t-2FFv-2BcBU4SuyYn6L3-2F32niS4mFEKFa6HAgRuHQ-3DWSim_dXh3YA56InUrW3-2FJIhzQvU3jse2bJk9s4R6AoUI6Ue1GFmiwCREGMOnPKqfVz9YLkHg5ZEk2b7LmRhP7-2FgQzROTrafklqcWVIl23mIpVtcSJzE7GJ5G3Wc4eaEwCJ78lB0SpNIWtEtBfSMHuOpXSiq-2Bk083QOxecbJBBc4FryTuSiEFvZ1cLs-2FoIoV9K-2BBWv-2B1cW0FWbkUGRXFwhDJ7XTFWJC8YZ58SUK8-2BuY-2Bo9VIDOSUx3h1scV08dwZfYqthfkmuiG51D5D77sjfFQShfYQ-3D-3D\">Estimating State Price Densities Implied by American Options<\/a><\/strong>, (with Guang Zhang), <em>Journal of Business &amp; Economic Statistics<\/em>, 44(2026), 80\u201393.. [<a href=\"\/qu\/files\/2025\/05\/SPD-A.pdf\">Working paper<\/a>] [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2025\/07\/SPDA-Code-Online.zip\">R code for replication.<\/a>]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><a href=\"\/qu\/files\/2025\/05\/Rpackage_QuOkaMesser.pdf\">QR.break: An R Package for Structural Breaks in Quantile Regression<\/a><\/strong><\/span><span class=\"C9DxTc \">, (with Samuel Messer and Tatsushi Oka), <em>Journal of Econometric Methods<\/em>, 14 (2025), 21-34. [<\/span>R package\u00a0<span class=\"C9DxTc \">QR.break<\/span><span class=\"C9DxTc \"> is available on CRAN (<\/span><a class=\"XqQF9c\" href=\"https:\/\/cran.r-project.org\/web\/packages\/QR.break\/index.html\" target=\"_blank\" rel=\"noopener noreferrer\"><span class=\"C9DxTc aw5Odc \">link<\/span><\/a>)<span class=\"C9DxTc \">.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><a href=\"https:\/\/drive.google.com\/file\/d\/1NjlUSkbDKdh4TKsri_aOIAtO9nGPvY1l\/view\">QTE.RD: An R Package for Quantile Treatment Effects in Regression-Discontinuity Designs with\/without Covariates<\/a><\/strong><\/span><span class=\"C9DxTc \">, (with Jungmo Yoon), <em>The R Journal<\/em>, 17(2025), \u00a02073-4859.\u00a0 [<\/span>R package\u00a0<span class=\"C9DxTc \">QTE.RD<\/span><span class=\"C9DxTc \"> is available on CRAN (<\/span><a class=\"XqQF9c\" href=\"https:\/\/cran.r-project.org\/web\/packages\/QTE.RD\/index.html\" target=\"_blank\" rel=\"noopener noreferrer\"><span class=\"C9DxTc aw5Odc \">link<\/span><\/a>)<span class=\"C9DxTc \">. ]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/span><\/li>\n<li style=\"text-align: left;\"><strong>Inference on Conditional Quantile Processes in Partially Linear Models with Applications to the Impact of Unemployment Benefits<\/strong>, (with Jungmo Yoon and Pierre Perron), 106(2024), 521-541,\u00a0<em>Review of Economics and Statistics<\/em>. [<a href=\"\/qu\/files\/2023\/06\/PL_full_paper.pdf\">Working paper.<\/a>] [<a href=\"\/qu\/files\/2023\/06\/Replication_Quantile_partially_linear.zip\">R code for replication<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Using Arbitrary Precision Arithmetic to Sharpen Identification Analysis for DSGE Models<\/strong>, (with Denis Tkachenko),\u00a0<em>Journal of Applied Econometrics,\u00a0<\/em>38 (2023), 451-667. [<a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/full\/10.1002\/jae.2965\">Open access.<\/a>] [<a href=\"https:\/\/github.com\/tkatched\/Identification-using-Arbitrary-Precision-Arithmetic\">Matlab code for replication.<\/a>]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Sieve Estimation of Option-Implied State Price Density<\/strong>, (with Junwen Lu), <em>Journal of Econometrics (Annals Issue: PI Day)<\/em>, 224 (2021), 88-112. [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/06\/SPD-1.pdf\">Working paper<\/a>.] [<a href=\"\/qu\/files\/2023\/06\/application_SPD.zip\">R code for implementing the proposed methods<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Likelihood Ratio Based Tests for Markov Regime Switching<\/strong>, (with Fan Zhuo), <em>Review of Economic Studies<\/em> 88 (2021), 937-968. [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/06\/MS.pdf\">Working paper<\/a>.] [<a href=\"\/qu\/files\/2023\/06\/MS_matlab_code.zip\">Matlab code for implementing the proposed methods<\/a>.] [<a href=\"\/qu\/files\/2023\/06\/MS_replication.zip\">Matlab code for replication<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Uniform Inference on Quantile Effects under Sharp Regression Discontinuity Designs<\/strong>, (with Jungmo Yoon), <em>Journal of Business and Economic Statistics<\/em> 37 (2019), 625-647. [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/06\/RD.pdf\">Working paper<\/a>.] [<a href=\"\/qu\/files\/2023\/06\/code_RD.zip\">R code for replication<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>A Composite Likelihood Framework for Analyzing Singular DSGE Models<\/strong>, <em>Review of Economics and Statistics<\/em> 100 (2018), 916-932. [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/singular.pdf\">Working paper<\/a>.] [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/Singular_replication.zip\">Matlab code for replication<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Global Identification in DSGE Models Allowing for Indeterminacy<\/strong>, (with Denis Tkachenko) <em>Review of Economic Studies<\/em> 84 (2017), 1306\u20131345. [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/DSGE-0513.pdf\">Working paper<\/a>.] [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/Supplementary.zip\">Online appendix<\/a>.] [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/replication.zip\">Matlab code for replication<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Nonparametric Estimation and Inference on Conditional Quantile Processes<\/strong>, (with Jungmo Yoon), <em>Journal of Econometrics<\/em>, 185 (2015), 1-19. [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/process-0612.pdf\">Working paper<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>M Tests with a New Normalization Matrix<\/strong>, (with Yi-Ting Chen), <em>Econometric Reviews<\/em>, 34 (2015), 617-652. [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/m_paper.pdf\">Working paper<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Inference in DSGE Models with Possible Weak Identification<\/strong>, <em>Quantitative Economics<\/em>, 5 (2014), 457-494. [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/Testing-DSGE.pdf\">Working paper<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>A Stochastic Volatility Model with Random Level Shifts and its Applications to S&amp;P 500 and Nasdaq Indices<\/strong>, (with Pierre Perron), <em>Econometrics Journal<\/em>, 16(2013), 309-339. [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/sv-revision.pdf\">Working paper<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Frequency Domain Analysis of Medium Scale DSGE Models with Application to Smets and Wouters (2007)<\/strong>, (with Denis Tkachenko), <em>Advances in Econometrics (Volume 28):<\/em> <em>DSGE Models in Macroeconomics \u2013 Estimation, Evaluation and New Developments<\/em>, 2012, 319-385. [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/paper.pdf\">Working paper<\/a>.]\u00a0[<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/08\/FD_DSGE_Code.zip\">Matlab code for replication<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Identification and Frequency Domain Quasi-maximum Likelihood Estimation of Linearized Dynamic Stochastic General Equilibrium Models<\/strong>, (with Denis Tkachenko), <em>Quantitative Economics<\/em>, 3(2012), 95-132. [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/update.pdf\">Update<\/a>.] [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/DSGE-1212.pdf\">Working paper<\/a>.] [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/08\/code.zip\">Matlab code for replication<\/a>.][<a href=\"https:\/\/www.dynare.org\/manual.pdf\">Dynare implementation: see p.120 of the linked document<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Estimating Structural Changes in Regression Quantiles<\/strong>, (with Tatsushi Oka), <em>Journal of Econometrics<\/em>, 162 (2011), 248-267. [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/paper-3.pdf\">Working paper<\/a>.] [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/qrbreak.zip\">R code for applying the methods<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>A Test Against Spurious Long Memory<\/strong>, <em>Journal of Business and Economic Statistics<\/em>. 29 (2011), 423-438. Working paper. [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/lm-fit-new2.pdf\">Working paper<\/a>.] [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/code.zip\">R code for applying the methods<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Long-Memory and Level Shifts in the Volatility of Stock Market Return Indices<\/strong>, (with Pierre Perron), <em>Journal of Business and Economic Statistics<\/em> 28 (2010), 275-290. [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/program.zip\">R code for replication<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Testing for Structural Change in Regression Quantiles<\/strong>, <em>Journal of Econometrics<\/em>, 148 (2008), 170-184.\u00a0[<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/qrbreak.zip\">R code for applying the methods<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Searching for Cointegration in a Dynamic System<\/strong>, <em>Econometrics Journal<\/em>, 10 (2007), 580\u2013604. (Reprinted in VIRTUAL ISSUE: Celebrating 10 years of The Econometrics Journal.) [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/08\/rankcode.zip\">Gauss Code 1<\/a> and <a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/08\/rankcv.zip\"><strong>Gauss <\/strong>Code 2<\/a> for applying the proposed methods.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Estimating and Testing Structural Changes in Multivariate Regressions<\/strong>, (with Pierre Perron), <em>Econometrica<\/em>, 75 (2007), 459-502. (Supplementary material available on the Econometrica website at this Link.) [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/Mbreak_matlab.zip\">Matlab Code for implementing the proposed methods<\/a>.] [<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/07\/multivariate-breaks.zip\">Gauss Code for implementing the proposed methods<\/a>.] [<a href=\"http:\/\/forums.eviews.com\/viewtopic.php?f=23&amp;p=68687&amp;sid=c2620b4556aa52a6ce900466bc04d4ee#p68687\">Eviews Add-in<\/a>.]<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>A Modified Information Criterion for Cointegration Tests based on a VAR Approximation<\/strong>, (with Pierre Perron), <em>Econometric Theory<\/em>, 23 (2007), 638-685.<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>A Simple Modification to Improve the Finite Sample Properties of Ng and Perron&#8217;s Unit Root Tests<\/strong>, (with Pierre Perron), <em>Economics Letters<\/em>, 94 (2007), 12-19.<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/li>\n<li style=\"text-align: left;\"><strong>Estimating Restricted Structural Change Models<\/strong>, (with Pierre Perron), <em>Journal of Econometrics<\/em>, 134 (2006), 373-399.\u00a0[<a href=\"https:\/\/sites.bu.edu\/qu\/files\/2023\/08\/r-breaks.zip\">Gauss Code for implementing the proposed methods<\/a>.]<\/li>\n<\/ol>\n<p style=\"text-align: justify;\"><!--more--><\/p>\n<h2><strong>Other Publications<\/strong><\/h2>\n<ol>\n<li><b>Introduction to the Themed Issue: Macroeconometrics<\/b><span>,\u00a0<\/span><em>Journal of Econometrics<\/em><span>, 244 (2024), 105870.<br style=\"clear: both;\" \/><br style=\"clear: both;\" \/><\/span><\/li>\n<li><strong>Introduction to Annals Issue: PI-Day<\/strong>, (with Serena Ng and Timothy Vogelsang),\u00a0<em>Journal of Econometrics<\/em><span>, 224 (2021), 1-2.<\/span><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Estimating State Price Densities Implied by American Options, (with Guang Zhang), Journal of Business &amp; Economic Statistics, 44(2026), 80\u201393.. [Working paper] [R code for replication.] QR.break: An R Package for Structural Breaks in Quantile Regression, (with Samuel Messer and Tatsushi Oka), Journal of Econometric Methods, 14 (2025), 21-34. [R package\u00a0QR.break is available on CRAN (link).] [&hellip;]<\/p>\n","protected":false},"author":15163,"featured_media":0,"parent":0,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"page-templates\/no-sidebars.php","meta":[],"_links":{"self":[{"href":"https:\/\/sites.bu.edu\/qu\/wp-json\/wp\/v2\/pages\/21"}],"collection":[{"href":"https:\/\/sites.bu.edu\/qu\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.bu.edu\/qu\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.bu.edu\/qu\/wp-json\/wp\/v2\/users\/15163"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.bu.edu\/qu\/wp-json\/wp\/v2\/comments?post=21"}],"version-history":[{"count":53,"href":"https:\/\/sites.bu.edu\/qu\/wp-json\/wp\/v2\/pages\/21\/revisions"}],"predecessor-version":[{"id":800,"href":"https:\/\/sites.bu.edu\/qu\/wp-json\/wp\/v2\/pages\/21\/revisions\/800"}],"wp:attachment":[{"href":"https:\/\/sites.bu.edu\/qu\/wp-json\/wp\/v2\/media?parent=21"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}