What is the role of startups within the innovation ecosystem? Since 2000, startups have grown in their share of commercializing research from top U.S. universities; however, prior work has little to say on the particular advantages of startup ventures in the innovation process relative to more...

We quantify a class of commonly-employed general equilibrium models of international trade and pricing-to-market that feature firm-level heterogeneity and consumers with nonhomothetic preferences. We demonstrate theoretically that the models lack the flexibility to match salient features of US...

Banks are unique in that they combine the production of liquid claims with loans. They can replicate most of what FinTech firms can do, but FinTech firms benefit from an uneven playing field in that they are less regulated than banks. The uneven playing field enables non-bank FinTech firms to...

This paper develops a simple framework for understanding the emergence of new organizational forms, such as socially responsible firms and social entrepreneurs, that embody the private sector's efforts to resolve problems that typically have been within the purview of government and traditional...

A quantum computer exhibits a quantum advantage when it can perform a calculation that a classical computer is unable to complete. It follows that a company with a quantum computer would be a monopolist in the market for solving such a calculation if its only competitor was a company with a...

Global supply chains have come under unprecedented stress as a result of US-China trade tensions, the Covid-19 pandemic, and geopolitical shocks. We document shifts in the pattern of US participation in global value chains over the last four decades, in terms of partner countries, products, and...

We estimate the effects of government spending along the supply chain using disaggregated U.S. government procurement data. We first identify sectoral public spending shocks and combine them with input-output tables to measure upstream and downstream exposure through the production network. We...

Forward-looking investments determine the resilience of firms' supply chains. Such investments confer externalities on other firms in the production network. We compare the equilibrium and optimal allocations in a general equilibrium model with an arbitrary number of vertical production tiers....

We study how the technological importance of inputs - measured by cost shares - is related to the decision to "make" or "buy" that input. Using detailed French international trade data and an instrumental variable approach based on self-constructed input-output tables, we show that...

Global value chains have fundamentally transformed international trade and development in recent decades. We use matched firm-level customs and manufacturing survey data, together with Input-Output tables for China, to examine how Chinese firms position themselves in global production lines and...