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Labor‐Technology Substitution: Implications for Asset Pricing
Author(s) -
ZHANG MIAO BEN
Publication year - 2019
Publication title -
the journal of finance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 18.151
H-Index - 299
eISSN - 1540-6261
pISSN - 0022-1082
DOI - 10.1111/jofi.12766
Subject(s) - task (project management) , productivity , economics , capital asset pricing model , stock (firearms) , labour economics , business , asset (computer security) , microeconomics , financial economics , macroeconomics , computer science , engineering , mechanical engineering , computer security , management
This paper studies the asset pricing implications of a firm's opportunities to replace routine‐task labor with automation. I develop a model in which firms optimally undertake such replacement when their productivity is low. Hence, firms with routine‐task labor maintain a replacement option that hedges their value against unfavorable macroeconomic shocks and lowers their expected returns. Using establishment‐level occupational data, I construct a measure of firms' share of routine‐task labor. Compared to their industry peers, firms with a higher share of routine‐task labor (i) invest more in machines and reduce more routine‐task labor during economic downturns, and (ii) have lower expected stock returns.

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