Lyman Stone PhD Candidate, McGill University

About Me

I am a PhD Candidate in Sociology at McGill University, in the Population Dynamics specialization. I research fertility preferences, factors impacting realization of preferences, and survey methodology. In particular, I analyze what people actually mean by the reports they give about their family dispositions in demographic and social surveys, assessing the role of explicit values, socializing influences, normative ecologies, response biases, implicit or unconscious schemas, and other factors. Secondarily, I then assess what kinds of social, structural, and policy factors mediate the relationship between these survey statements and people's ultimate family outcomes.

My research focuses on fertility, but connects to a broader theoretical and quantitative literature involving survey design and methodology, experimental sociology, cognitive science and cognitive sociology, and causal inference. I have current working publications using contextual priming experiments, methods for measuring subconscious schemas like IATS and AMPs, synthetic control models for limited-unit causal inferences, double- and triple-difference-in-difference models for many-unit causal inferences, geo- and spatially-weighted life-course exposures, intergenerational models with genetic data, and other advanced quantitative methods.

I am also interested in historical demography, critical demography, studies of contraception and abortion, and family demography at large. I received my BA in economics from Transylvania University in 2013, and my MA in International Trade and Investment Policy from the George Washington University's Elliott School for International Affairs in 2015. I also have a range of for-profit and not-for-profit research applications and affiliations described in more detail in my CV, but current affiliations include my role as Director of Research for the consulting firm Demographic Intelligence, Senior Fellow at the Canadian, faith-based think tank Cardus, and Research Fellow at the Charlottesville, VA-based Institute for Family Studies. My wife, Ruth, and I are from Kentucky. We and our two children (Suzannah, 3, and Josephine, 1) live in Montreal, Quebec.

You can follow me on twitter below (@lymanstoneky), where I tweet prolifically. My tweets represent extremely informal, provisional versions of my thoughts, are often jokes, and may not represent my current thinking on a topic.

Twitter

Current Working Projects

Religiously-Inspired Baby Boom: Evidence from Georgia

We study the impact of a change in the content of religious practice on fertility decisions. We do so in the context of the Georgian Orthodox Church, where in December 2007, in a move to reverse declining fertility rates, the church’s Patriarch began to personally baptise third- or higher-parity children. At the macro level, using a synthetic control method and interrupted time series analysis, we find suggestive evidence that Georgian fertility rates did rise in response to this intervention. We validate this result using microdata on fertility histories and religion from a representative sample of Georgian women, exploiting variation in religion, ethnicity, marital status, and prior parity to identify women exogenously treated by the patriarch’s campaign. We find that the baptism campaign significantly increased fertility for treated women (i.e. Georgian Orthodox women, especially if married). It also increased marriage and reduced reported abortion. All of these outcomes were desired targets of the intervention. Our results show that even in industrialized, educated, low-fertility societies, traditional authority figures making use of religious discourses may be able to influence fertility patterns. 

with Seung-Hun Chung, Neha Deopa, Kritika Saxena

Submitted for publication

Are Surveyed Fertility Preferences Real? Evidence from a Controlled Survey Experiment of Priming and Wording

Demographers have long explored theories situating childbearing dispositions as motivations for fertility behaviors (e.g. Theory of Planned Behavior, Traits-Desires-Intentions-Behaviors), based on the observation that stated dispositions towards fertility predict longitudinal behaviors. But many have questioned this interpretation of stated preferences, arguing that survey reports can be unstable and reflect rationalizations. Theories such as the Theory of Conjunctural Action or the “discovery” model suggest that stated fertility preferences may be survey constructions with high degrees of uncertainty, not “motivations.” Survey methodological research could illuminate these theories, yet study of fertility preference survey methods is sparse. If stated fertility preferences are sensitive to contextual priming or question wording, theories postulating that stated preferences are constructions in an epistemically closed context would be supported. In a survey experiment (n=3,000), I find limited evidence for this view; neither abstracted ideals about or desired family size nor intentions to have an additional child are significantly influenced by two different contextual primes, while intended total family size is sensitive to priming. These findings illustrate the importance of carefully distinguishing between the different kinds of questions and concepts often described as fertility preferences.

Accepted for conference presentation at PAA 2023

Cell Phones, Fertility Preferences, and the Calculus of Conscious Choice in Low- and Middle-Income Countries

This study explores the relationship between the diffusion of mobile phones and fertility preferences across low- and middle-income countries (LMICs). Theoretically, we build on ideational diffusion theories, world society perspectives, and related extensions. Methodologically, we leverage Demographic and Health Survey (DHS) data from 31 countries and conduct analyses exploring a range of non-numeric and numeric fertility preference outcomes. The picture we provide is far more complex and nuanced than the common finding that cell phone diffusion is associated with – or leads to – declines in fertility. First, we find that associations with non-numeric ideals are rather strong and that women owning phones are less likely to report uncertainty, fatalism, or ambiguity about what they would choose, suggesting that cell phones may contribute to help move fertility into the “calculus of conscious choice.” Second, we find that associations with numeric ideals are weaker, suggesting that phones may play a larger role in shaping macro-schemas about choice and agency than child desires per se. Lastly, we document that owning a cell phone is associated with higher intentions to have a child for women with zero or one child, yet lower intentions for women with two or more children. All in all, our findings combined reveal that cell phone ownership is not associated with a monotonic increase in correspondence between intentions and ideals, but a “selective convergence” around the two-child norm – possibly strengthened by the diffusion of more globalized fertility discourses – even for women with stated preferences exceeding such norm.

with Luca Maria Pesando

Submitted for conference presentation at ASA 2023

Motherhood Penalties in a Low-Income Context: Evidence from Retrospective Maternal Work Histories in the Chitwan Valley of Nepal

This project extends the event-study based analyses of motherhood wage penalties pioneered by Henrik Kleven into a novel, low-income context using a new retrospective survey of women's work histories in the Chitwan Valley Family Study based in Nepal. This is an early-stage work in progress, however, preliminary results suggest that motherhood earnings penalties in this low-income context are very similar to penalties measured in higher-income contexts.

with Sarah Brauner-Otto

Work in progress

School Characteristics and Fertility Preferences: Effect of Life-Course Exposure to Specific Curricula on Fertility Preferences in Nepal

This project collates school-specific data on curricular characteristics and other school traits for every school which ever existed in the Chitwan Valley, and then identifies individual-level life-course exposure to different school traits for individuals in two longitudinal survey waves. I use this geographically and spatially weighted measure of exposure to school family planning curricula, English-language medium of exposure, and female teachers to assess how school traits influence survey-reported fertility preferences later in life. 

Work in progress

Economic Freedom and the Fertility Gap

According to recent surveys, the average woman in the United States would be happiest having 2.47 children. Yet, the total fertility rate is 1.69 children. The difference between desired fertility and achieved fertility is called the fertility gap (0.78 children). This paper investigates the determinants of the fertility gap across the U.S. states, focusing on variation in economic freedom. We argue that greater economic freedom empowers women to better achieve their preferred fertility outcome. We test this hypothesis using state-level measures of fertility preference (2020-22) from a nationally representative survey of reproductive-aged women, state-level total fertility rates (2020-22), and economic freedom scores (2000-20) from the Fraser Institute. Even with controls, we find a negative and statistically significant relationship between a state's economic freedom score and its fertility gap. Specifically, a one-point increase in the economic freedom score is associated with a 0.05 decrease in the fertility gap, which amounts to over a 6% reduction in the average fertility gap. 

with Clara Piano

Work in progress

LRS Academic CV 2023-03-02.pdf