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This paper proposes a new interpretation for the precautionary saving motive: when future income is uncertain, agents increase saving in order to cause a reduction in the disutility due to uncertainty. Furthermore the paper shows that the usual necessary and sufficient condition for...
Persistent link: https://www.econbiz.de/10005772851
. Second, we use the concept of prudence to solve a long-standing problem in mean-variance analysis: what is the economic … distributions, utility is concave as a function of variance and mean if, and only if, it exhibits decreasing prudence. …
Persistent link: https://www.econbiz.de/10005136604
We show how optimal saving in a two-period model is affected when prudence and riskaversion of the underlying utility … function change. Increasing prudence alone will induce higher savings only if, for certain combinations of the interest rate …
Persistent link: https://www.econbiz.de/10005181267
Consider a simple two-state risk with equal probabilities for the two states. In particular, assume that the random wealth variable Xi dominates Yi via ith-order stochastic dominance for i = M,N. We show that the 50-50 lottery [XN + YM, YN + XM] dominates the lottery [XN + XM, YN + YM] via (N +...
Persistent link: https://www.econbiz.de/10005181585
We study the case of a competitive firm exposed to both input and output price risk. In an expected utility framework, we elicit the separation theorem, and show the positive impact of derivatives markets on the optimal output. We also show that in the case of several inputs, the risk-averse...
Persistent link: https://www.econbiz.de/10005739835
The aim of this paper is to examine portfolio management of emission allowances in the US Sulfur Dioxide Emissions Allowance Trading Program, to determine whether utilities have a real motive to bank when risk increases. We test a theoretical model linking the motivation of the firm to...
Persistent link: https://www.econbiz.de/10005739853
This note provides an alternative proof for the equivalence of decreasing absolute prudence (DAP) in the expected …
Persistent link: https://www.econbiz.de/10005753470
time-inconsistency. Comparing the effects of time-inconsistency, risk aversion and prudence, we formulate an intuitive …
Persistent link: https://www.econbiz.de/10010594148
In this letter, we show that the results presented by Jindapon and Neilson (2007) for changes in risk à la Ekern (1980) can be generalized to mean-preserving stochastic dominance changes, with appropriate and simple additional conditions on the utility function.
Persistent link: https://www.econbiz.de/10011041839
Although there has been much attention in recent years on the effects of additive background risks, the same is not true for its multiplicative counterpart. We consider random wealth of the multiplicative form xy, where x and y are statistically independent random variables. We assume that y is...
Persistent link: https://www.econbiz.de/10010266917