東京大学政策評価研究教育センター

CREPEDP-178

Number CREPEDP-178
Publication Date November 2025
Title Incomplete Information and Irreversible Investment
Author Jonathan Adams, Cheng Chen, Min Fang, Takahiro Hattori, and Eugenio Rojas
Abstract How does incomplete information affect capital when investments are irreversible? We use a continuous-time model to analytically characterize how these frictions distort firms’ decisions and the distribution of capital. Irreversibility causes misallocation and inaction; incomplete information amplifies the friction, increasing aggregate capital and allocating it less efficiently. Counterintuitively, firms with worse information are less likely to be inactive; they are more willing to invest and do so inefficiently. But their investment is also less responsive to macroeconomic shocks. We test and quantify these predictions using Japanese administrative data that match firms’ forecasts with their balance sheets, incomes, and expenditures. In the data, firms underreact to news as if they face information frictions; those with more extreme underreaction are less inactive, as predicted.
Keywords Heterogeneous Firms, Incomplete Information, Irreversible Investment, Heterogeneous Beliefs, Misallocation, Investment Volatility
Other information Paper in English (78 pages)