Network Effects on Behavior: How Do Mechanisms Matter?
Sociology Colloquium, UC-Berkeley, May 4, 2015.

An Empirical Approach to Integrating Migration Theories.
Keynote at the Determinants of International Migration (DEMIG) Conference,
Oxford University, September 24, 2014.

Network Effects in Migrant Remittances.
The Immaterial Remittances Workshop, Princeton University,
September 19, 2014.

Mexico-U.S. Migration in Time: From Economic to Social Mechanisms. (with Asad L. Asad)
Social Mechanisms at Work workshop, Madrid, October 22, 2012

Discovering Diverse Mechanisms of Migration: The Mexico-U.S. Stream from 1970 to 2000.
DRCLAS seminar, Harvard, September 25, 2012:

The Impact of Migration and Remittances on Wealth Accumulation and Distribution in Rural Thailand.
The Immigration and Poverty Conference, University of California, Davis, May 17, 2012.

Commencement Keynote Address (in Turkish).
Boğaziçi University, Istanbul, Turkey, June 30, 2011:

Social Networks, Migration and Inequality.
CIFAR, Social Interactions, Identity and Well Being Program Meeting, Ottawa, ON, June 1, 2011.

Do Migrant Remittances Lead to Inequality?
The Economy, Justice and Society Seminar, University of California, Davis, Friday, May 7, 2010.

How Do Network Externalities Lead to Intergroup Inequality? (with Paul DiMaggio)
The Applied Statistics Workshop, Institute for Quantitative Social Science, Harvard University, February 18, 2009.

An Integrated Analysis of Migration and Remittances: Modeling Migration as a Mechanism for Selection.
Population Studies and Training Center Colloquium, Brown University, February 12, 2009.

Social Capital and Migration: How Do Similar Resources Lead to Divergent Outcomes?
Department of Sociology Colloquium, Northwestern University, Wednesday, October 4, 2006.