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Investment Under Up- and Downstream Uncertainty
Working paper   Open access

Investment Under Up- and Downstream Uncertainty

Fotis Grigoris and Gill Segal
Stanford Digital Repository
05/29/2024
DOI: 10.25740/hx038hg9167
url
https://doi.org/10.25740/hx038hg9167View
Open Access

Abstract

We study the transmission of uncertainty shocks in production networks and find that their impact on economic activity depends on their source in supply chains. A real-option framework with time-to-build predicts that only upstream uncertainty suppresses investment, since upstream (downstream) uncertainty from suppliers (customers) affects the shorter-run (longer-run). Consistently, production-network data show that upstream uncertainty propagates downstream, affecting firm-level outcomes negatively. Conversely, downstream uncertainty propagates upstream more weakly but affects firm-level outcomes positively. At the macro-level, these two uncertainties oppositely predict aggregate growth and asset prices. Overall, downstream uncertainty has an expansionary effect, in contrast to other facets of uncertainty.
Investment Macro-Finance Production Network Real option Time to Build Uncertainty

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