This paper describes a simple model of aggregate and firm growth based on the introduction of new goods. An incumbent firm can combine labor with blueprints for goods it already produces to develop new blueprints. Every worker in the economy is also a potential entrepreneur who can design a new...

In the data, a sizable fraction of price changes are temporary price reductions referred to as sales. Existing models include no role for sales. Hence, when confronted with data in which a large fraction of price changes are sales related, the models must either exclude sales from the data or...

Wage inequality between education groups in the United States has increased substantially since the early 1980s. The relative quantity of college-educated workers has also increased dramatically in the postwar period. This paper presents a unified framework where the dynamics of both skill...

We present the first estimates of long-run trends in intergenerational relative mobility for samples that are representative of the full U.S.-born population. Harmonizing all surveys that ask about father's occupation and own family income, we develop a mobility measure that allows for the...

Why have white, less educated voters left the Democratic Party over the past few decades? Scholars have proposed ethnocentrism, social issues and deindustrialization as potential answers. We highlight the role played by the 1994 North American Free Trade Agreement (NAFTA). In event-study...