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Shahe Emran

@shahe-emran-econ.bsky.social

I am a development economist, with interests in both theoretical and empirical work, especially the interaction between theory and data.

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Jesse Rothstein@jrothst.bsky.social · last wk.

I do wish @chalkbeat.org had chosen a different cover image, though - our story is not just about Harvard, but about the broad spectrum of higher education. This graph, from @mattbarnum.bsky.social's article, just shows *public* colleges and universities. bsky.app/profile/matt...

Matt Barnum@mattbarnum.bsky.social · last wk.

New- American higher education is designed so that the academically and financially rich get richer through a well-funded education. The startling scope of this unequal structure is documented in a new study by @zbleemer.bsky.social and @jrothst.bsky.social. www.chalkbeat.org/2026/08/18/s...

GIGAZINE@gigazine.net · 3w ago

iPhoneで動作しBonsai 27Bと同等性能で13倍高速なAI「Maple-Preview」が登場、ローカルAIがまた1歩前進 https://gigazine.net/news/20260805-maple-preview/

iPhoneで動作しBonsai 27Bと同等性能で13倍高速なAI「Maple-Preview」が登場、ローカルAIがまた1歩前進

AI研究企業のDeepGroveが軽量かつ高性能なAIモデル「Maple-Preview」を発表しました。Maple-PreviewはiPhoneでも動作するほど小型のモデルで、同じくiPhoneで動作するBonsai 27Bと比べて13倍高速な処理が可能です。

gigazine.net

AEA Journals@aeajournals.bsky.social · 2mo ago

Forthcoming in AEJ: Applied Economics: "The Evolution of Black-White Differences in Occupational Mobility Across Post-Civil War America" by Steven Durlauf, Gueyon Kim, Dohyeon Lee, and Xi Song.

The Evolution of Black-White Differences in Occupational Mobility Across Post-Civil War America

(Forthcoming Article) - We examine long-run differences in intergenerational occupational mobility between Black and White Americans using linked censuses and survey data from 1850 to 2021. We document two main results. First, shifts in mobility dynamics, most notably for the 1940–1950 cohort, reshaped occupational structures and reduced racial segregation. Second, new measures of intergenerational persistence reveal both bottlenecks and the enduring memory in the mobility system, offering new perspectives on the role of mobility in explaining the lack of convergence in Black-White occupational outcomes.

aeaweb.org

British Journal of Sociology@bjsociology.bsky.social · 2mo ago

In this research note, Herman G. van de Werfhorst explores how the field of the sociogenomics of inequalities would benefit from discussing what its findings and ambitions mean for core theories of social stratification and mobility. #EarlyView in #BJS ➡️

The Sociogenomics of Social Stratification and General Theories of Inequality

The field of the sociogenomics of inequalities would benefit from discussing what its findings and ambitions mean for core theories of social stratification and mobility. Do sociologists need to…

onlinelibrary.wiley.com

Michel Nivard@michelnivard.bsky.social · 2mo ago

Really cool (and somewhat freighting) work on Gen AI use and highschool performance in China. Homework Scores rocket up, time spend doing homework collapses, then predictably exam scores are way down. Results show bimodal response ~75% see scores drop, the other 20-25% keep doing the work.

The Generative AI Learning Penalty: Evidence from Chinese Secondary Education

Using 30 months of panel data on 26,811 Chinese students in grades 7-12, we study how generative AI affects homework productivity and learning. The data combine

papers.ssrn.com

RNIM (Research Network on Intergenerational Mobility)@rnim-seminar.bsky.social · 3mo ago

𝗩𝗶𝗯𝗵𝘂 𝗣𝗿𝗮𝘁𝘆𝘂𝘀𝗵 (UBC) will present his paper on 𝗝𝘂𝗻𝗲 𝟵, 𝟮𝟬𝟮𝟲. #EconSky #SocSky Join Us! Title: 𝗟𝗮𝗻𝗱 𝗳𝗼𝗿 𝗢𝗽𝗽𝗼𝗿𝘁𝘂𝗻𝗶𝘁𝘆? 𝗗𝗲𝗽𝗿𝗶𝘃𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗜𝗺𝗺𝗼𝗯𝗶𝗹𝗶𝘁𝘆 𝗶𝗻 𝗥𝘂𝗿𝗮𝗹 𝗜𝗻𝗱𝗶𝗮 Time: 𝟭𝟬 𝗔𝗠 𝗘𝗦𝗧 ||𝟰 𝗣𝗠 𝗖𝗘𝗧 || 𝟭𝟭 𝗣𝗠 𝗖𝗵𝗶𝗻𝗮 Registration: 👉 tinyurl.com/ekdw93ma (All participants must re-register) 👇Abstract:

We examine how land ownership shapes educational mobility in rural India. Using full-count rural census microdata, we document a robust step-function pattern across the land distribution: educational mobility rises sharply from the landless to marginal landholders and then plateaus. Exploiting historical variation in British-era land-tenure regimes, we demonstrate a causal link between higher landlessness and lower educational mobility. To unpack mechanisms, we develop a model where parents allocate children’s time between school and work under a subsistence constraint. With little or no land, the constraint binds, increasing child labour and suppressing schooling; a small rise in land relaxes it, producing a sharp drop in child labour and a jump in schooling and upward mobility. The framework endogenously generates the step-function, matches the core facts, rationalizes heterogeneities, and yields testable predictions that we validate.
Anna Stansbury@annastansbury.bsky.social · 3mo ago

In more gender-equal countries - there is more gender segregation in university subjects studied - there is more gender segregation in childhood friendships Fascinating by Manuel Bagues & Natalia Zinovyeva

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RNIM (Research Network on Intergenerational Mobility)@rnim-seminar.bsky.social · 4mo ago

𝗟𝗼𝘂𝗶𝘀 𝗦𝗶𝗿𝘂𝗴𝘂𝗲 (LSE) will present his paper on 𝗠𝗮𝘆 𝟭𝟯, 𝟮𝟬𝟮𝟲. #EconSky #SocSky #AcademicSky Join Us! Title: 𝗜𝗻𝘁𝗲𝗿𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗜𝗻𝗰𝗼𝗺𝗲 𝗠𝗼𝗯𝗶𝗹𝗶𝘁𝘆 𝗮𝗿𝗼𝘂𝗻𝗱 𝘁𝗵𝗲 𝗪𝗼𝗿𝗹𝗱: 𝗔 𝗠𝗲𝘁𝗮-𝗔𝗻𝗮𝗹𝘆𝘀𝗶𝘀 Time : 𝟭𝟬 𝗔𝗠 𝗘𝗦𝗧 ||𝟰 𝗣𝗠 𝗖𝗘𝗧 || 𝟭𝟭 𝗣𝗠 𝗖𝗵𝗶𝗻𝗮 Registration: 👉 tinyurl.com/ekdw93ma 👇Abstract:

Intergenerational income persistence is commonly measured as the degree of association between the lifetime income of individuals and that of their parents. Over the last decade, a growing literature has provided national estimates of intergenerational income persistence for a wide range of countries. At the same time, evidence has shown that these estimates are highly sensitive to methodological choices, such as the number of years over which income is averaged, the age at which it is measured, or the set of variables used to predict parental income when it is unobserved. In most cases, data constraints prevent researchers from adopting best practices, limiting comparability across studies. This study systematically compiles national estimates of intergenerational persistence from the literature together with detailed information on their estimation settings. Cross-study variation in these parameters is used to provide a joint assessment of the impact of estimation settings on persistence estimates. Building on these results, national measures are adjusted for methodological differences to provide as consistent a depiction of the variation in intergenerational mobility across countries as possible.
RNIM (Research Network on Intergenerational Mobility)@rnim-seminar.bsky.social · 5mo ago

𝗠. 𝗦𝗵𝗮𝗵𝗲 𝗘𝗺𝗿𝗮𝗻 (IPD, Columbia U) will present his paper on 𝗔𝗽𝗿𝗶𝗹 𝟭𝟳, 𝟮𝟬𝟮𝟲. #EconSky #SocSky #AcademicSky Join Us! Title: 𝗪𝗵𝗲𝗻 𝗥𝗮𝗻𝗸𝘀 𝗙𝗮𝗶𝗹: 𝗡𝗲𝘄 𝗘𝘃𝗶𝗱𝗲𝗻𝗰𝗲 𝗼𝗻 𝗜𝗻𝘁𝗲𝗿𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗠𝗼𝗯𝗶𝗹𝗶𝘁𝘆 Time : 𝟭𝟬 𝗔𝗠 𝗘𝗦𝗧 ||𝟰 𝗣𝗠 𝗖𝗘𝗧 || 𝟭𝟭 𝗣𝗠 𝗖𝗵𝗶𝗻𝗮 Registration: 👉 tinyurl.com/ekdw93ma 👇Abstract:

Many recent studies on intergenerational educational mobility adopted the rank-rank model popularized by the work of Chetty et al. (2014, QJE) on income mobility, under the assumption that the approach remains valid for discrete variables. However, conversion of discrete data, such as years of schooling, into percentile ranks fails to make the empirical rank distribution uniform, unlike continuous variables such as income. Thus, the estimates of relative educational mobility from rank-rank regressions are not margin-free, and capture a fundamentally different concept of mobility compared to the rank-rank slope in income mobility analysis. Taking advantage of recent advances on discrete copulas, we introduce a margin-free measure of relative educational mobility, Yule’s coefficient, which is the analogue of the rank-rank slope in income mobility. Yule’s coefficient was proposed by Geenens (2020) as a summary measure of the margin-free dependence structure between two discrete variables such as children’s and parents’ schooling. The margin-free dependence structure is estimated by an iterative matrix re-scaling procedure applied to the joint probability mass function of the bivariate discrete distribution. We report estimates of Yule’s coefficient for 6 countries: the USA, Bangladesh, India, Indonesia, Chile, and Mexico. The evidence suggests that, in many cases, the rank-rank slope estimates for schooling overestimate the margin-free relative educational mobility (positional mobility). For example, the estimates for the USA (PSID data) are: rank-rank slope=0.441 and Yule’s coefficient=0.534. The extent of overestimation in the national estimates varies considerably across countries: 3.09% – 48.31%. The cross-country rankings and evolution of educational mobility across cohorts are substantially different when we use the margin-free Yule’s coefficient instead of the rank-based measures.
Hanchen Jiang@hanchenraphael.bsky.social · 5mo ago

🚨𝐍𝐞𝐰 𝐏𝐮𝐛𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐀𝐥𝐞𝐫𝐭🚨 🎉 🎉 Thrilled to share that our paper, “𝙍𝙚𝙣𝙩 𝘾𝙤𝙣𝙩𝙧𝙤𝙡, 𝙍𝙚𝙣𝙩 𝙊𝙫𝙚𝙧𝙘𝙝𝙖𝙧𝙜𝙚, 𝙖𝙣𝙙 𝙍𝙖𝙘𝙞𝙖𝙡 𝘿𝙞𝙨𝙥𝙖𝙧𝙞𝙩𝙮” 🏙️📈, has been published in the 𝐑𝐞𝐚𝐥 𝐄𝐬𝐭𝐚𝐭𝐞 𝐄𝐜𝐨𝐧𝐨𝐦𝐢𝐜𝐬 (the premier and official journal of @areuea.bsky.social 🚀 🚀 🚀

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RNIM (Research Network on Intergenerational Mobility)@rnim-seminar.bsky.social · 6mo ago

𝗟𝗶 𝗬𝗮𝗻𝗴 (Hong Kong University) will present his paper on 𝗠𝗮𝗿𝗰𝗵 𝟭𝟲, 𝟮𝟬𝟮𝟲. #EconSky #SocSky #AcademicSky Join Us! Title: 𝗙𝗿𝗼𝗺 𝗟𝗶𝗼𝗻 𝗥𝗼𝗰𝗸 𝘁𝗼 𝗟𝗼𝗰𝗸𝗲𝗱 𝗚𝗮𝘁𝗲𝘀: 𝗧𝗵𝗲 𝗗𝗲𝗰𝗹𝗶𝗻𝗲 𝗼𝗳 𝗨𝗽𝘄𝗮𝗿𝗱 𝗠𝗼𝗯𝗶𝗹𝗶𝘁𝘆 𝗶𝗻 𝗛𝗼𝗻𝗴 𝗞𝗼𝗻𝗴 Time : 𝟭𝟬 𝗔𝗠 𝗘𝗦𝗧 ||𝟰 𝗣𝗠 𝗖𝗘𝗧 || 𝟭𝟭 𝗣𝗠 𝗖𝗵𝗶𝗻𝗮 Registration: 👉 tinyurl.com/ekdw93ma 👇Abstract:

This study provides the first comprehensive analysis of absolute intergenerational mobility (AIM) in Hong Kong, using census data spanning four decades. Employing the “copula and marginals” method, the authors document a sharp decline in AIM, from 85% for the 1976 birth cohort to 49% for the 2001 cohort, driven largely by diminished labor income mobility. The erosion stems primarily from slower economic growth rather than rising inequality; under constant economic growth, AIM would stabilize at approximately 67%, accounting for nearly all of the decline, with minimal residual from inequality or copula changes. The findings are robust across specifications, and an innovative Mincer equation–based decomposition highlights education’s critical role in mitigating declines, offering general insights into how tertiary expansion shapes mobility in transitioning economies.
RNIM (Research Network on Intergenerational Mobility)@rnim-seminar.bsky.social · 7mo ago

𝗞𝗷𝗲𝗹𝗹 𝗚. 𝗦𝗮𝗹𝘃𝗮𝗻𝗲𝘀 (Norwegian School of Economics) will present his paper on 𝗙𝗲𝗯𝗿𝘂𝗮𝗿𝘆 𝟭𝟬, 𝟮𝟬𝟮𝟲. #EconSky #Socsky Title: 𝗧𝗵𝗲 𝗗𝗲𝗰𝗹𝗶𝗻𝗲 𝗼𝗳 𝗥𝗼𝘂𝘁𝗶𝗻𝗲 𝗧𝗮𝘀𝗸𝘀, 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻 𝗜𝗻𝘃𝗲𝘀𝘁𝗺𝗲𝗻𝘁𝘀, 𝗮𝗻𝗱 𝗜𝗻𝘁𝗲𝗿𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗠𝗼𝗯𝗶𝗹𝗶𝘁𝘆 Time : 𝟭𝟬 𝗔𝗠 𝗘𝗦𝗧 ||𝟰 𝗣𝗠 𝗖𝗘𝗧 || 𝟭𝟭 𝗣𝗠 𝗖𝗵𝗶𝗻𝗮 Registration: 👉 tinyurl.com/ekdw93ma 👇Abstract:

How does a large structural change to the labor market affect education investments made at young ages? Exploiting differential exposure to the national decline in routine-task intensity across local labor markets, we show that the secular decline in routine tasks causes major shifts in education investments of high school students, where they invest less in vocational-trades education and increasingly invest in college education. Our results highlight that labor demand changes impact inequality in the next generation. Low-ability and low-SES students are most responsive to task-biased demand changes and, as a result, intergenerational mobility in college education increases.
RNIM (Research Network on Intergenerational Mobility)@rnim-seminar.bsky.social · 7mo ago

𝗔𝗻𝘁𝗼𝗻𝗶𝗼 𝗗𝗮𝗹𝗹𝗮-𝗭𝘂𝗮𝗻𝗻𝗮 (Bank of Italy) will present his paper on 𝗝𝗮𝗻𝘂𝗮𝗿𝘆 𝟯𝟬, 𝟮𝟬𝟮𝟲. #EconSky #AcademicSky #Socsky Join us! Title: 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗠𝗼𝗯𝗶𝗹𝗶𝘁𝘆 𝗔𝗰𝗿𝗼𝘀𝘀 𝗠𝘂𝗹𝘁𝗶𝗽𝗹𝗲 𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝘀 𝗶𝗻 𝗜𝗻𝗱𝗼𝗻𝗲𝘀𝗶𝗮 Time : 𝟭𝟬 𝗔𝗠 𝗘𝗦𝗧 ||𝟰 𝗣𝗠 𝗖𝗘𝗧 || 𝟭𝟭 𝗣𝗠 𝗖𝗵𝗶𝗻𝗮 Registration: 👉 tinyurl.com/ekdw93ma 👇Abstract:

Standard intergenerational measures have been shown to understate the long-run persistence of socioeconomic advantages in developed countries. We study theoretically and empirically whether this pattern extends to less developed settings, using Indonesia as a case study. We estimate multigenerational correlations in education across three generations, using five waves of the Indonesian Family Life Survey (IFLS) and the 1995 and 2005 Censuses. Contrary to previous findings, we find a negative grandparent-grandchild coefficient, implying greater educational mobility than the intergenerational correlations from developing contexts typically suggest. We build a theoretical framework to identify two key factors influencing multigenerational transmission in developing countries: (1) financial and credit constraints, and (2) cultural norms surrounding marital sorting. To test the salience of these mechanisms in Indonesia, we analyze regional variations in marital practices, education expenditures, and the impact of 1997 Asian financial crisis.
Shahe Emran@shahe-emran-econ.bsky.social · 7mo ago

The linear model of educational mobility is misleading for understanding the evolution in Japan. It suggests no changes between the 1940s and 1990s birth cohorts, but the mobility curve was concave in the 1940s, and became convex in the 1990s. Link to the paper: papers.ssrn.com/sol3/papers....

Convexity and Latent Status: Understanding the Evolution of Intergenerational Educational Mobility in Japan

We study intergenerational educational mobility in Japan, with a focus on its evolution from the 1940s to the 1990s birth cohorts.  Japan is an excellent c

papers.ssrn.com

Per Engzell@pengzell.bsky.social · 8mo ago

Researching social mobility is hard in countries that only have data on coresident family members. This paper suggests that sibling similarity is a more robust measure in this case than parent-child similarity.

Hanchen Jiang@hanchenraphael.bsky.social · 8mo ago

Ahsan, M. N., Emran, M. S., Jiang, H., & Shilpi, F. (2025). Making the most of coresident data: Credible evidence on intergenerational mobility with sibling correlation. Journal of Development Economics, 176, 103508. doi.org/10.1016/j.jd...

Nazmul Ahsan@nazmul-ahsan-econ.bsky.social · 8mo ago

Read the full paper: "𝗪𝗵𝗲𝗻 𝗥𝗮𝗻𝗸𝘀 𝗙𝗮𝗶𝗹: 𝗡𝗲𝘄 𝗘𝘃𝗶𝗱𝗲𝗻𝗰𝗲 𝗼𝗻 𝗜𝗻𝘁𝗲𝗿𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗠𝗼𝗯𝗶𝗹𝗶𝘁𝘆" by Ahsan, Emran, Mohammed, Murphy, & Shilpi (Dec 2025). #Economics #Education #SocialMobility (13/14). Link: tinyurl.com/ykjf7ur2

<p>When Ranks Fail: New Evidence on Intergenerational Educational Mobility</p>

Many recent studies on intergenerational educational mobility adopted the rank-rank model popularized by the work of Chetty et al. (2014, QJE) on income mobilit

tinyurl.com

Nazmul Ahsan@nazmul-ahsan-econ.bsky.social · 8mo ago

Is the popular rank-rank model (Chetty et al., 2014) valid for measuring educational mobility? While rank-based measures of mobility work well for continuous variables such as income, they face intractable challenges when applied to discrete variables, such as years of schooling. #Econsky (1/14)