This chapter reviews the literature on the causal effects of policies on fertility. It focuses on evidence from experiments and quasi-experiments in low fertility contexts, including studies from Europe, Northern America, Oceania and Asia. Making no a priori restrictions on policy type, the...

This paper presents novel causal evidence on the effects of pro-natalist cash transfers on fertility, sex ratio at birth, and infant health. In the context of South Korea, I exploit rich spatial and temporal variation in cash transfers provided to families with newborn babies and the universe of...

This paper presents novel causal evidence on the effects of pro-natalist financial incentives on babies. I exploit rich spatial and temporal variation in cash transfers provided to families with newborn babies and the universe of birth, death, and migrant registry records in South Korea. I...

We study optimal dynamic lockdowns against Covid-19 within a commuting network. Our framework integrates canonical spatial epidemiology and trade models, and is applied to cities with varying initial viral spread: Seoul, Daegu and NYC-Metro. Spatial lockdowns achieve substantially smaller income...

We study optimal dynamic lockdowns against Covid-19 within a commuting network. Our framework integrates canonical spatial epidemiology and trade models, and is applied to cities with varying initial viral spread: Seoul, Daegu and NYC-Metro. Spatial lockdowns achieve substantially smaller income...