Katsuhiko Nishiyama https://katsuhiko-nishiyama.github.io/ Recent content on Katsuhiko Nishiyama Hugo -- 0.154.3 en Sat, 28 Feb 2026 00:00:00 +0000 The Impact of Job Displacement on Health Insurance Coverage in the Post-ACA Era https://katsuhiko-nishiyama.github.io/papers/mypaper3/ Sat, 28 Feb 2026 00:00:00 +0000 https://katsuhiko-nishiyama.github.io/papers/mypaper3/ <hr> <h2 id="download">Download</h2> <ul> <li><a href="Jobloss_paper_20260228.pdf">Paper</a></li> </ul> <hr> <h2 id="abstract">Abstract</h2> <p>This paper examines whether insurance sources expanded under the Affordable Care Act (ACA), particularly health insurance marketplaces and Medicaid, compensate for the loss of employer-sponsored health insurance (ESHI) following job displacement. Using monthly data from the 2014–2016 Survey of Income and Program Participation, I estimate duration-specific effects of displacement on each coverage source with a difference-in-differences design. ESHI coverage falls by 15 to 18 percentage points within a few months of displacement, with only slight recovery over the following year. Medicaid enrollment increases modestly, driven entirely by workers in expansion states where coverage increases exceed 7 percentage points. Directly purchased private insurance shows no discernible response despite marketplace availability and premium subsidies, and this holds across income levels. These findings indicate that ACA marketplace reforms in the sample period provide limited protection for displaced workers.</p> Location https://katsuhiko-nishiyama.github.io/location/ Thu, 08 Jan 2026 00:00:00 +0000 https://katsuhiko-nishiyama.github.io/location/ Katsu Nishiyama&#39;s mailing and office addresses at the Institute of Romance Philology. Office Hours https://katsuhiko-nishiyama.github.io/officehours/ Thu, 08 Jan 2026 00:00:00 +0000 https://katsuhiko-nishiyama.github.io/officehours/ Schedule and location for office hours. Shrinking Populations, Aging, and Access to Healthcare https://katsuhiko-nishiyama.github.io/papers/mypaper2/ Thu, 08 Jan 2026 00:00:00 +0000 https://katsuhiko-nishiyama.github.io/papers/mypaper2/ <hr> <h2 id="download">Download</h2> <p>TBA</p> <!-- - [Paper](ESHI_paper.pdf) --> <hr> <h2 id="abstract">Abstract</h2> <p>TBA</p> <hr> <h2 id="citation">Citation</h2> <p>TBA</p> <hr> <h2 id="related-material">Related material</h2> Medical Debt, Self-Insurance, and the Value of Health Insurance for the Non-Elderly https://katsuhiko-nishiyama.github.io/papers/mypaper1/ Wed, 22 Oct 2025 00:00:00 +0000 https://katsuhiko-nishiyama.github.io/papers/mypaper1/ <hr> <h2 id="download">Download</h2> <ul> <li><a href="ESHI_paper.pdf">Paper</a></li> </ul> <hr> <h2 id="abstract">Abstract</h2> <p>TBA</p> <hr> <h2 id="citation">Citation</h2> <p>TBA</p> <hr> <h2 id="related-material">Related material</h2> Medical Debt and Access to Hospital Care https://katsuhiko-nishiyama.github.io/papers/mypaper4/ Wed, 24 Apr 2024 00:00:00 +0000 https://katsuhiko-nishiyama.github.io/papers/mypaper4/ <hr> <h2 id="download">Download</h2> <p>TBA</p> <!-- - [Paper](ESHI_paper.pdf) --> <hr> <h2 id="abstract">Abstract</h2> <p>TBA</p> <hr> <h2 id="citation">Citation</h2> <p>TBA</p> <hr> <h2 id="related-material">Related material</h2> False Alarm? Estimating the Marginal Value of Health Signals https://katsuhiko-nishiyama.github.io/papers/mypaper0/ Mon, 01 Mar 2021 00:00:00 +0000 https://katsuhiko-nishiyama.github.io/papers/mypaper0/ <hr> <h2 id="download">Download</h2> <p>TBA</p> <hr> <h2 id="abstract">Abstract</h2> <p>TBA</p> <hr> <h2 id="citation">Citation</h2> <p>TBA</p> <hr> <h2 id="related-material">Related material</h2> List of Irregular Verbs Across Romance Languages https://katsuhiko-nishiyama.github.io/data/data1/ Thu, 07 Mar 2013 00:00:00 +0000 https://katsuhiko-nishiyama.github.io/data/data1/ This dataset contains all irregular verbs in known Romance languages. Portugese Irregular Verbs https://katsuhiko-nishiyama.github.io/books/book1/ Wed, 01 Jan 1997 00:00:00 +0000 https://katsuhiko-nishiyama.github.io/books/book1/ This book discusses Portugese irregular verbs in great details. Econometrics 1 https://katsuhiko-nishiyama.github.io/courses/course1/ Mon, 01 Jan 0001 00:00:00 +0000 https://katsuhiko-nishiyama.github.io/courses/course1/ <h2 id="course">Course</h2> <ul> <li><strong>Term</strong>: 2025 Spring/Summer</li> <li><strong>Target</strong>: Undergraduate (School of Law) / Graduate (OSIPP)</li> </ul> <h2 id="materials">Materials</h2> <p>See the CLE page.</p> Health Economics https://katsuhiko-nishiyama.github.io/courses/course2/ Mon, 01 Jan 0001 00:00:00 +0000 https://katsuhiko-nishiyama.github.io/courses/course2/ <h2 id="course">Course</h2> <ul> <li><strong>Term</strong>: 2025 Fall/Winter, 2024 Fall/Winter</li> <li><strong>Target</strong>: Undergraduate (School of Law)</li> </ul> <h2 id="materials">Materials</h2> <p>See the CLE page.</p>