This article reviews a framework for studying the aggregation and propagation of
microeconomic shocks in general equilibrium. We discuss the determinants of aggregate …

We model the production of complex goods in a large supply network. Each firm sources
several essential inputs through relationships with other firms. Individual supply …

Climate change will intensify natural disasters, potentially impacting firms' spatial
organization. Using global car industry data and an event-study design, I demonstrate floods …

This paper studies an economy in which firms are connected through input-output linkages
and must pay a fixed cost to produce. When economic conditions are poor, some firms might …

We study how within-store price variation changes with inflation, and whether households
exploit it to attenuate the inflation burden. We use micro price data for food products sold by …

This paper studies a production network model with quantity rigidities and informational
frictions, where (i) firms may be restricted in how effectively they can adjust (some or all of) …

Forward-looking investments determine the resilience of firms' supply chains. Such
investments confer externalities on other firms in the production network. We compare the …

We investigate the effects of input variety creation and destruction on both micro-and
macroeconomic outcomes using detailed data from Belgium. We estimate that marginal …

This paper shows that the ancestry composition shaped by century-long immigration to the
US can explain the current structure of global supply chains. Using an instrumental variable …

Socio-technical systems, where technological and human elements interact in a goal-
oriented manner, provide important, functional support to our societies. We draw specific …