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role of learning and risk aversion. It bridges two strands of literature: one focused on the role learning for the success … of IEA formation when countries are risk neutral and another that explores the implications of uncertainty and risk … aversion on IEA formation under no learning. Combining learning and risk aversion seems appropriate as the uncertainties …
Persistent link: https://www.econbiz.de/10013059058
Temperature responses and optimal climate policies depend crucially on the choice of a particular climate model. To illustrate, the temperature responses to given emission reduction paths implied by the climate modules of the well-known integrated assessments models DICE, FUND and PAGE are...
Persistent link: https://www.econbiz.de/10012947620
We study the importance of uncertainty and public finance to the welfare ranking of three environmental policy instruments: pollution taxes, pollution permits and Kyoto-like numerical rules for emissions. The setup is the basic stochastic neoclassical growth model augmented with the assumptions...
Persistent link: https://www.econbiz.de/10013316232
We present a simple approach to transform a deterministic numerical model, where several agents simultaneously make decisions, into a stochastic model. This approach, which builds on scenario aggregation, a numerical method developed to solve decision problems under uncertainty, is used to build...
Persistent link: https://www.econbiz.de/10013072087
This paper examines the impact of Knightian uncertainty upon optimal climate policy through the prism of a continuous-time real option modelling framework. We analytically determine optimal intertemporal climate policies under ambiguity. Additionally, numerical simulations are provided to...
Persistent link: https://www.econbiz.de/10013092649
Common integrated assessment models produce the counterintuitive result that higher risk aversion does not lead to …. The simulations show that aversion to this tipping point risk has little effect. For climate sensitivity of realistic …
Persistent link: https://www.econbiz.de/10013315580
-probability extreme events on environmental policy in a continuous-time real options model with “tail risk”. In a nutshell, our results … indicate the importance of tail risk and call for foresighted pre-emptive climate policies …
Persistent link: https://www.econbiz.de/10013139799
Recent theoretical work in the economics of climate change has suggested that climate policy is highly sensitive to ‘fat-tailed’ risks of catastrophic outcomes (Weitzman, 2009b). Such risks are suggested to be an inevitable consequence of scientific uncertainty about the effects of increased...
Persistent link: https://www.econbiz.de/10013315705
The paper reexamines the welfare economics of intergenerational risk. Risk and its resolution over time are modeled as … preferences to (i) disentangle aversion to intergenerational inequality from aversion to risk, (ii) exhibit a preference for early … resolution of risk, (iii) show different discounting formulas depending on the magnitude of risk and on the timing of its …
Persistent link: https://www.econbiz.de/10013030316
assumption of (intertemporal) risk neutrality reduces the growth effect in social discounting and significantly amplifies the … importance of risk and correlation. Second, debate and models largely overlook the difference in attitude with respect to risk … and with respect to non-risk uncertainty. The paper derives the resulting changes of the risk-free and the stochastic …
Persistent link: https://www.econbiz.de/10013110758