The rise in national industry concentration in the US between 1977 and 2013 is driven by a new industrial revolution in three broad non-traded sectors: services, retail, and wholesale. Sectors where national concentration is rising have increased their share of employment, and the expansion is...

The rise in national industry concentration in the US between 1977 and 2013 is driven by a new industrial revolution in three broad non-traded sectors: services, retail, and wholesale. Sectors where national concentration is rising have increased their share of employment, and the expansion is...

The rise in national industry concentration in the US between 1977 and 2013 is driven by a new industrial revolution in three broad non-traded sectors: services, retail, and wholesale. Sectors where national concentration is rising have increased their share of employment, and the expansion is...

What do changes in sectoral/regional productivity look like? How do they aggregate up? In this study we quantify the importance of sectoral and regional propagations of disaggregated changes in productivity. To do so, we use a multi-region, multi-sector model to identify the changes in sectoral...

We propose a theory of firm dynamics in which workers have ideas for new projects that can be sold in a market to existing firms or, at a cost, implemented in new firms: spin-offs. Workers have private information about the quality of their ideas. Because of an adverse selection problem, workers...

Why do firms decide to offshore certain parts of their production process? What qualifies certain countries as particularly attractive locations to offshore? In this paper we address these questions with a theory of international production hierarchies in which teams arise endogenously to make...