The Investment That Disappears Before Productivity Does
The subject here is the investment channel connecting tighter credit to a firm’s future productive capacity. The specific question is why a funding shock can leave physical productivity unchanged at first and lower it years later. The answer is that firms do not fund all expenses for the same time horizon: when current liquidity is scarce, they may protect payroll and immediate production by postponing research, training, technology adoption, or organizational improvements. The useful judgment is to distinguish a temporary input shortfall from a capability shortfall that persists after the original credit constraint has eased.
Why long-horizon capability is easy to postpone
A firm facing a credit tightening has to rank uses of cash by urgency and recoverability. Wages, materials, debt service, and essential maintenance support the operation that generates this period’s revenue. Research and development, worker training, and the adoption of a new production system ask the firm to spend now for returns that are uncertain, delayed, or difficult to pledge as collateral. If the firm cannot finance every use, capability investment becomes vulnerable even when management understands that it is important for growth.
This vulnerability has a particular financial logic. A lender can more readily assess the value of a machine, inventory, or receivable than the value of an unfinished idea, a worker’s accumulated firm-specific knowledge, or a reorganization that only pays off once employees learn to use it. Intangible investments can therefore have poor liquidation value from the lender’s perspective. The firm bears the downside if the project fails, while the lender may not be able to recover much of the investment if the firm defaults. A credit constraint raises the value of cash today, making a long-horizon project look more expensive relative to its future payoff.
The firm’s decision is not simply to stop innovating. It can cut the amount spent, delay a project, reduce the number of workers assigned to it, or stop making any R&D expenditure for a year. These choices operate on different margins. A lumpy R&D program may disappear entirely even when a continuous spending measure shows only a moderate change. Training may be reduced per employee, while the firm also changes the composition of its workforce. A new machine may be postponed, preserving the existing capital stock but slowing the replacement of older equipment.
Those decisions create a distinction between current production and future capability. If a firm buys fewer materials this year, output can fall relatively quickly because fewer inputs enter the current production process. If it reduces research or training, the current production line may continue using the knowledge and technologies already in place. The cost appears later, when the firm has fewer process improvements to adopt, fewer skilled workers to integrate them, or fewer new products ready to support growth. The firm can therefore look operationally intact while its future production function is quietly becoming less capable.
The New York Fed evidence fits this timing. Its Belgian manufacturing data show no immediate statistically significant effect of the credit shock on quantity-based physical productivity, but a significant contraction beginning about three years after the shock.