What Drives Corporate Savings

Nan Chen, Xavier Giroud, Ling Qin and Neng Wang

No 20965, CEPR Discussion Papers from Centre for Economic Policy Research

Abstract: We study the determinants of corporate cash holdings by extending the standard q theory of investment with financing frictions and productivity shocks. While existing models predict a low propensity to hold cash, we show that realistic cash holdings arise only when three ingredients are combined: 1.) costly external financing, 2.) persistent productivity shocks, and 3.) contemporaneous productivity shocks. With costly external financing, persistent productivity shocks generate predictable cash flows and investment opportunities, but yield little need for savings since the internally generated cash flows are aligned with the investment needs. Contemporaneous shocks make internally generated cash flows random, inducing firms to hold cash at levels consistent with those observed empirically.

Date: 2025-12
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