This paper tests for the importance of cash flow on investment in fixed capital and R&D using firm-level panel data in … investment or R&D. In identical specifications for British firms, cash flow is informative about investment, although not about … the level of R&D spending conditional on the R&D participation decision. In the UK, we also find that investment is less …

investment. Uncertainty increases real option values making firms more cautious when investing or disinvesting. This is confirmed … both numerically for a model with a rich mix of adjustment costs, time-varying uncertainty, and aggregation over investment … investment response to demand shocks. This implies the responsiveness of firms to any given policy stimulus may be much lower in …