Richard Hartman (1976) and Duncan M. Holthausen (1976) showed that firms' input choices may be affected by demand uncertainty. Specifically, uncertain demand conditions may lead to firms operating with a lower capital-ratio. This result has potentially important implications for the analysis of factor demand and factor productivity. The author constructs measures of demand uncertainty and examines the above relationship for a sample of 125 U.S. manufacturing industries. Results show that there exists a significant negative relationship between demand uncertainty and the capital-labor ratio. Copyright 1991 by MIT Press.

We study the impact of profit uncertainty on investment and whether or not this response is different in industries that are dominated by small firms versus those that are dominated by relatively larger firms. Our key findings are that the sign of the investment-uncertainty relationship is negative, and that the quantitative negative impact is substantially greater in industries dominated by small firms. These results are robust to accounting for potential endogeneity of the uncertainty measure, alternate procedures for measuring uncertainty, and alternate ways of segmenting industries into small- and large-firm groups.