Notre Dame Population Analytics
College of Arts and Letters
Time
September 28, 2026
Psychologist and substance-use researcher Ryan Carpenter explains why the idea of an “addictive personality” is misleading: there is no single personality type that reliably predicts whether someone will develop an addiction. Instead, he says, addiction risk reflects a complex combination of individual and environmental factors—including mental health, trauma, personality traits, and social circumstances—and those risk factors can change over time.
The New York Times
September 28, 2026
Economist Melissa Kearney and her coauthor found an unexpected connection between homeownership and the baby boom: government-backed mortgages issued after World War II appear to have increased birth rates. Their research suggests that owning a home may influence decisions about having children not simply by making housing more affordable, but by giving young families a greater sense of financial security and confidence in the future.
September 14, 2026
Alexander Kustov explains why international student migration has historically enjoyed broad public support, even as attitudes toward immigration have soured. He argues that this support depends less on persuasion or messaging than on whether immigration policies produce visible benefits for the public: when international students bring educational, economic, and labor-market benefits, they are broadly welcomed, but when universities become a backdoor immigration channel, that support can quickly erode.