We propose a unified theory of asset price determination encompassing both "conventional" and "alternative" asset classes (private equity, real estate, etc.). The model features disruption of old by young firms and skewness in the distribution of innovative rents among the young innovators. The...

We examine the role of spillover learning in shaping the value of exploratory versus incremental R&D. Using data from drug development, we show that novel drug candidates generate more knowledge spillovers than incremental ones. Despite being less likely to reach regulatory approval, they are...

The causal effects of fertility are a central focus in the social sciences, but the analysis is challenged by the endogeneity of fertility choices. Earlier work has proposed several "natural experiments" from twin births or gender composition of earlier births to assess whether having more...

We describe how the COVID-19 pandemic affected reproductive choices in New York City, the most acutely impacted area of the United States. We contrast changes in New York City with reproductive outcomes in the rest of the US. We find that births to New York City residents fell 8.4% more between...

We use a unique data set of linked birth records from Florida to analyze the intergenerational transmission of health at birth by parental gender. We show that both paternal and maternal birth weights significantly predict the child's birth weight, even after accounting for all genetic and...

This paper introduces four new intergenerational and multigenerational datasets which follow both sons and daughters and which can be used to study the persistence of longevity, socioeconomic status, family structure, and geographic mobility across generations. The data follow the children of...

Using newly digitized U.S. city-level data on hospitals, we explore how pandemics alter preferences for healthcare. We find that cities with higher levels of mortality during the Great Influenza of 1918-1919 subsequently expanded hospital capacity by more than cities experiencing less influenza...

Access to safe and stable housing is important for child and adult wellbeing. Yet many low-income households face severe challenges in maintaining stable housing. In this paper we examine the impact of the 2021 temporary expansion to the Child Tax Credit (CTC) on the living arrangements and...

A growing literature explores the impact of home-based versus office-based work. Differences in productivity may arise due to a treatment effect of the office or from workers with different abilities sorting into office or home work. We conduct an RCT in the data entry sector in India that...