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Impact investing as an activity as well as a concept has grown in recognition on a true global scale. Yet, apart from anecdotal success stories of some specialised forms such as social-impact bonds, little is known about the field and the complex interplay between agents, instruments and...
Persistent link: https://www.econbiz.de/10013031943
We investigate what it means for one act to be more ambiguous than another. The question is evidently analogous to asking what makes one prospect riskier than another, but beliefs are neither objective nor representable by a unique probability. Our starting point is an abstract class of...
Persistent link: https://www.econbiz.de/10011694759
health care reform in the United States is a potentially important source of households' financial uncertainty. To quantify … the implications of this uncertainty for the real economy, this paper conducts an empirical analysis of the effect of … health care policy uncertainty (HCPU) on two channels of households' economic behavior: consumption and portfolio choice …
Persistent link: https://www.econbiz.de/10012848640
firm characteristics, macroeconomic environment, other uncertainty measures, time, and alternative GPR and R&D measures, as …Although most empirical studies conclude that uncertainty delays firms' investments based on real options theory …, empirical evidence regarding the impact of uncertainty on innovation is mixed. This study examines the impact of geopolitical …
Persistent link: https://www.econbiz.de/10012897976
backward stochastic differential equations, including new examples with explicit formulas. Under model uncertainty about the … Sondermann (1986) if uncertainty is sufficiently large …
Persistent link: https://www.econbiz.de/10012972303
Before information φ arrives, market observers must be uncertain whether the stock price conditioned on φ will be higher or lower than the current price. Otherwise there is an obvious arbitrage opportunity. By assuming this minimal condition of efficient markets, it is shown under the...
Persistent link: https://www.econbiz.de/10013035935
The expected utility formulation of the problem of a risk-averse agent's allocating a portfolio between a safe and a risky asset is widely taken as standing for the proposition that if α* ε (0, 1) is the optimal allocation to the risky asset in the absence of tax, α*/(1-t) is the optimal...
Persistent link: https://www.econbiz.de/10013049484
This paper investigates empirically the dynamics of investors' beliefs and Bayesian uncertainty about the state of the … economy as state variables that describe the time-variation in investment opportunities. Using measures of uncertainty … aggregate output, I find a negative relationship between the level of uncertainty and asset valuations. This relationship shows …
Persistent link: https://www.econbiz.de/10013149939
The expected utility formulation of the problem of a risk-averse agent's allocating a portfolio between a safe and a risky asset is widely taken as standing for the proposition that if α* ε (0, 1) is the optimal allocation to the risky asset in the absence of tax, α*/(1-t) is the optimal...
Persistent link: https://www.econbiz.de/10013054124
This paper conducts an empirical analysis of the effect of health care policy uncertainty (HCPU) on households …
Persistent link: https://www.econbiz.de/10013308138