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Marginal Revolutionanalysis

The collapse of teen fertility in the digital era

Marginal Revolution
Thursday, April 30, 2026 at 4:07 PM
~4 min read

Original Report

Teen fertility collapsed globally starting around 2007. This affected countries across the income and policy spectrum. This paper argues that smartphones changed how teens spend time with each other,...

Teen fertility collapsed globally starting around 2007. This affected countries across the income and policy spectrum. This paper argues that smartphones changed how teens spend time with each other, and that this change in turn drove the collapse in teen fertility. Once enough teens are on the phone, being on the phone is where the […] The post The collapse of teen fertility in the digital era appeared first on Marginal REVOLUTION.

Glass House Analysis

International economic policy has concrete impacts far beyond diplomatic circles. Tariffs show up in the price of goods at stores, supply chain disruptions affect whether products are on shelves, and trade tensions can mean job losses in export-dependent industries. The globalized economy means that decisions made abroad can affect workers and consumers domestically.

The implications extend beyond the immediate news cycle. Every economic development creates ripples that affect employment, prices, and opportunities in ways that may not be immediately visible but are deeply felt. By tracking these connections, we can better understand how the economy truly works—not as an abstract machine, but as a human system shaped by and shaping the lives of millions.

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