function is studied experimentally.The experiment allow us to study the main parametersof the model, suggesting that we should …

undiversifiable labor income risk. Optimal portfolios are internationally diversified while positive correlation between domestic … with a small amount of buffer stock saving, while exchange rate risk makes foreign investments less appealing to risk …

labor income risk and stock-market participation costs. In contrast to the initial motivation, we find that the model is not …

simultaneously matching stock market participation and individual asset holdings. The high risk premium is driven by incomplete risk … negligible impact on the risk premium, contrary to the results of models where it is imposed exogenously. …

We show that a life-cycle model with realistically calibrated uninsurable labor income risk and moderate risk aversion … risk aversion. Households with low risk aversion smooth earnings shocks with a small buffer stock of assets and … consequently most of them (optimally) never invest in equities. Therefore, the marginal stockholders are (endogenously) more risk …

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 …

, major weaknesses with respect to long-run investment in human capital, infrastructure and innovation remain. These are … hampered by problems of short-termism and policy risk. We propose a series of radical reforms to address these problems: such …