The Man and the Market: Investment Decision Making and Corporate Resource Allocation in Japan During the Lost Decades

Abstract

This study explores the structural drivers of Japan’s prolonged economic stagnation, known as the “Lost Decades,” by integrating analysis of micro-level financial frictions and reallocation processes and macro-level resource misallocation. Utilizing firm-level panel data from TOPIX-listed nonfinancial companies (1995-2025) and estimating capital stocks and production functions including intangible capital, the study estimates the dual-channel effect of funding constraints on capital formation and the effect of factor-specific misallocation on aggregate productivity. At the micro-level, I find that financial frictions are highly significant determinants of investment behavior and have not moderated over time. Notably, cash stocks exert a stronger impact on investment than operating cash flow. Additionally, tangible investment is more sensitive to both internal liquidity and Tobin’s Q, while intangible investment remains relatively unresponsive. Lastly, I find that Bond-Cummins analyst-forecast-based Q values are a worse predictor of investment behavior than traditional market-based Q after adjusting for intangible capital. At the macro-level, I estimate responsiveness of capital formation to productivity signals, finding that tangible capital is more readily adjustable than both labor and intangible capital, while theory suggests labor should be the least fixed input. Then, I estimate a total annual TFP loss due to misallocation, and attribute this loss to individual factor misallocation; I find that misallocation in the labor market is responsible for the largest portion of the output gap, and while labor and tangible capital markets have gotten marginally more efficient during the study period, intangible capital has become increasingly inefficiently allocated as it takes an increasing share of factor costs in the Japanese economy. This drove a persistent output gap of roughly 20-25% through the study period, despite a return to TFP growth in the last 15 years. The findings suggest a divergence in the Japanese economy, where despite financial frictions facing tangible investment, managers continue to prioritize such physical assets, leaving the accumulation of intangible capital and labor as mechanical processes that do not respond to shocks in Tobin’s Q, TFP, or liquidity. Ultimately, the study concludes that Japan’s corporate ecosystem is locked in a defensive equilibrium that drives stagnation. Key Words: Japanese Economy, Lost Decade, Intangible Capital, Tobin’s Q, Corporate Investment, Financial Frictions, Efficiency, Misallocation