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“It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.“
—Arthur Conan Doyle, “A Scandal in Bohemia” in The Adventures of Sherlock Holmes

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I use quantitative methods to study stratification and inequality based on sexuality and gender as well as sexual and gender minority populations from a queer and feminist perspective. In particular, I am interested in (1) the association between sexual orientation and gender identity, and socioeconomic status; (2) the measurement of sexual orientation and gender identity in quantitative research; (3) sexual/gender minorities and social attitudes; and (4) queer and feminist methodologies.

For a complete list of publications and research experience, please see my CV here.

Data Collection Experience

Due to the scarcity of data on sexual orientation and gender identity in Japan, I have engaged in primary data collection for my research and designed multiple, large-scale social surveys. I hold the Certificate of Advanced Social Researcher issued by the Japanese Association for Social Research. Below is a list of the surveys that I have been involved in:

1. the “niji VOICE” surveys (a series of web surveys on LGBT issues and the workplace environment, conducted almost annually from 2014 through 2020 by the certified nonprofit organization Nijiiro Diversity)
   • Muraki, Maki, Daiki Hiramori, Jun Mikami, and Kei Yamawaki. 2021. LGBT Workplace Equality in Japan [White Paper]: “There Is Still a Long Way to Workplace Equality.” Voices of 7,162 LGBTQ and Allies, edited by the certified nonprofit organization Nijiiro Diversity. Osaka, Japan. In Japanese.
   • Nijiiro Diversity, and the Center for Gender Studies at International Christian University. 2022. niji VOICE 2020: A Web Survey on LGBT Issues and the Workplace Environment [MRDF]. Osaka and Tokyo, Japan: Nijiiro Diversity and the Center for Gender Studies at International Christian University [producer/depositor]. Tokyo, Japan: Center for Social Research and Data Archives, Institute of Social Science, The University of Tokyo [distributor].
2. the “Survey on Diversity of Work and Life, and Coexistence among the Residents of Osaka City” (one of the few population-based surveys with questions on sexual orientation and gender identity in Japan, conducted in January-February 2019)
   • Demography of Sexual Orientation and Gender Identity: Building a Foundation for Research in Japan (JSPS KAKENHI Grant Number 16H03709, PI: Saori Kamano, $157,300)
   • Kamano, Saori, Hitoshi Ishida, Takeyoshi Iwamoto, Yasuyo Koyama, Yoshimi Chitose, Daiki Hiramori, Hiromi Fujii, Kana Fuse, Masakazu Yamauchi, and Takashi Yoshinaka. 2019. “Survey on Diversity of Work and Life, and Coexistence among the Residents of Osaka City”: Report Based on Percent Frequency Tables, edited by Research Team on Diversity of Work and Life, JSPS KAKENHI Grant Number 16H03709 “Demography of Sexual Orientation and Gender Identity: Building a Foundation for Research in Japan” (PI: Saori Kamano). Tokyo, Japan: National Institute of Population and Social Security Research. In Japanese.
3. the second “Survey on Ideas about Being Men and Women and Social Attitudes” (one of the few nationally representative surveys of attitudes toward various sexual and gender minorities in Japan, conducted in June-July 2019)
   • Research on the Transformation of Attitudes and Policy toward Sexual Minorities (JSPS KAKENHI Grant Number 18H03652, PI: Kazuya Kawaguchi, $430,300)

Sexual/Gender Minorities and Socioeconomic Inequality

In this project, I examine inequality in socioeconomic status based on sexual orientation and gender identity in Japan. In my dissertation “Sexuality Stratification in Contemporary Japan: A Study in Sociology,” I used the Osaka City Residents’ Survey, one of the few population-based surveys that asks about sexual orientation in Japan, to explore the association between sexual orientation and educational attainment, occupational segregation, and earnings disparities in Japan. The research for this dissertation was partially supported by the Harry Bridges Center for Labor Studies at the University of Washington, Japan Center for Economic Research, and JSPS KAKENHI Grant Number JP16H03709 “Demography of Sexual Orientation and Gender Identity: Building a Foundation for Research in Japan.”

• Hiramori, Daiki. Forthcoming. “Social Stratification: Stratification and Inequality Based on SOGI.” Pp. XX-XX in LGBT/SOGI and Society, edited by T. Iwamoto and S. Kamano. Kyoto, Japan: Minerva Shobo. In Japanese.
• Hiramori, Daiki. 2015. “Challenges of Sexual and Gender Minorities in the Workplace: Multivariate Analyses of Income and Willingness to Continue Working.” Gender and Sexuality 10:91-118. In Japanese.
• Hiramori, Daiki. “Social-Institutional Structures That Matter: A Quantitative Monograph of Sexual/Gender Minority Status and Earnings in Japan.” Working paper available on SocArXiv.

Demography of Sexual Orientation and Gender Identity

I am involved in the research project “Constructing a Demography of Sexual Orientation and Gender and Identity: Nationwide Random Sampling Survey” to examine how to quantitatively understand sexual and gender minority populations, while taking the Japanese context into account. I am also interested in describing the diversity of sexual orientation from a demographic perspective.

• Miyake, Daijiro, and Daiki Hiramori. 2023. “Multidimensionality of Romantic Orientation among the Aromantic/Asexual Spectrum in Japan.” Gender and Sexuality 18:1-25. In Japanese.
• Miyake, Daijiro, and Daiki Hiramori. 2021. “Demographic Diversity of the Aromantic/Asexual Spectrum in Japan: Findings from the 2020 Aro/Ace Survey.” Journal of Population Problems 77(2):206-32. In Japanese.
• Hiramori, Daiki, and Saori Kamano. 2020. “Asking about Sexual Orientation and Gender Identity in Social Surveys in Japan: Findings from the Osaka City Residents’ Survey and Related Preparatory Studies.” Journal of Population Problems 76(4):443-66. *A full Japanese translation of this article is available in the Journal of Population Problems 77(1):45-67.
• Kamano, Saori, Daiki Hiramori, Hitoshi Ishida, Takeyoshi Iwamoto, Yasuyo Koyama, Yoshimi Chitose, Hiromi Fujii, Kana Fuse, Masakazu Yamauchi, Takashi Yoshinaka. 2020. Exploring the Response “Don’t Want to Decide, Haven’t Decided” to a Sexual Orientation Question: Results from an Experimental Study to Improve SOGI Questions, edited by “Demography of Sexual Orientation and Gender Identity: Building a Foundation for Research in Japan” (PI: Saori Kamano). Tokyo, Japan: National Institute of Population and Social Security Research. In Japanese.
• Hiramori, Daiki, and Saori Kamano. “Understanding Sexual Orientation Identity, Sexual/Romantic Attraction, and Sexual Behavior beyond Western Societies: The Case of Japan.” Working paper available on SocArXiv.

Attitudes toward Sexual/Gender Minorities

Originally started as senior thesis research on attitudes toward same-sex sexual relations, this project investigates the factors associated with attitudes toward sexual/gender minorities in Japan, with a focus on the Buddhist faith.

• Hiramori, Daiki. 2019. “Is Buddhism Tolerant of Homosexuality in Japan? Toward a Contextual Understanding of Religion and Homosexuality.” Presented at the Annual Meeting of the American Sociological Association, August 10, New York, NY.

Quantitative Queer Methodology

In this project, I explore the possibility of using quantitative methods from a queer perspective. Drawing from emerging literature on queer approaches to quantitative data collection and analysis, this project aims to illustrate how quantitative research may be used to empirically evaluate the claims of queer theory and how queer theory, in turn, may be used to inform quantitative research.

• Hiramori, Daiki, Saori Kamano, and Takeyoshi Iwamoto. 2021. “Are All of the ‘Undecided’ Sexual/Gender Minorities? A Queer Demographic Analysis of an Experimental Study to Improve SOGI Questions.” Presented online at the Annual Meeting of the Population Association of America, May 7, St. Louis, MO.
• Hiramori, Daiki. 2017. “What Do Sexual/Gender Minority-Supportive Workplaces Look Like?: Findings from the ‘Survey on LGBT Issues in the Workplace Environment.’” Labour Research 561:10-4. In Japanese. [Invited]
• Hiramori, Daiki. 2016. “Possibilities of Queer and Feminist Methodologies in Quantitative Research: Findings from the ‘LGBT Workplace Environment Survey 2015.’” Presented at the Annual Meeting of the Population Association of Japan, June 12, Chiba, Japan.

Other Research and Program Evaluation Experience

In addition to the projects mentioned above, I have been involved in various research projects related to gender and sexuality. Between March 2017 and March 2022, I also worked at the Center for Evaluation & Research for STEM Equity at the University of Washington as a graduate research assistant. My evaluation style centers on the perspective of diversity, equity, and inclusion for a more equitable representation of systemically marginalized populations in science, technology, engineering, and mathematics (STEM) educational fields.

• Iwamoto, Takeyoshi, Daiki Hiramori, Shino Naito, and Satoshi Nakano. 2019. “An Estimation of Social Loss Due to Suicide and Depression among Sexual/Gender Minorities, and a Survey on Income Disparity between Them and the Non-Minority.” The Japan Institute for Labour Policy and Training, JILPT Discussion Paper 19-05. In Japanese.
• Internal Evaluator (Social Science Researcher: March 2019-) for the Pacific Northwest Louis Stokes Alliance for Minority Participation, Center for Evaluation & Research for STEM Equity, University of Washington.
  • 2019-2025. Louis Stokes STEM Pathways and Research Alliance: Pacific Northwest. Division of Human Resource Development, National Science Foundation (NSF HRD 1911026, PI: Mark Richards, $4,000,000). Proposal co-writer for social science research component (with Emily Knaphus-Soran and Elizabeth Litzler).
  • Hiramori, Daiki, James Lamar Foster, Emily Knaphus-Soran, and Elizabeth Litzler. “Critically Quantitative: Measuring Community Cultural Wealth on Surveys.” Conference paper available on ASEE PEER.
  • Knaphus-Soran, Emily, Daiki Hiramori, and Elizabeth Litzler. “Anti-Racist Institutional Transformation Matters: How Can Community Cultural Wealth and Counterspace Processes Illuminate Areas for Change?” Conference paper available on ASEE PEER.