This paper investigates an environmental policy designed to reduce the emission of pollutants under uncertainty, where the agents’ problem is formulated as an optimal stopping problem. We first analyze the single-agent’s case according to Pindyck [Pindyck, R.S., 2002. Optimal timing problems in environmental economics. Journal of Economic Dynamics and Control 26, 1677–1697]. We then extend the ...

The paper deals with optimal control problems with only onecontrol variable and one state constraint, of arbitrary order. We considerthe case of finitely many boundary arcs and touch times. We obtain a no-gap theory of second-order conditions, allowing to characterize second-orderquadratic growth.

We demonstrate that an ideal observer model bounded by known limitations of the human visual system can explain empirical evidence concerning two effects of distractor ratios on visual search—effects that have previously been explained with salience-based models. The model makes optimal state estimations based on Bayesian estimates of stimuli localization and optimal control decisions of where ...

1 This paper surveys the recent literature concerning the structure of optimal taxes in dynamic economies in which agents are privately informed about skills and effort.

The paper investigates the stability of the solutions of linearquadratic optimal control problems with bang-bang controls in terms of metric sub-regularity and bi-metric regularity. New sufficient conditions for these properties are obtained, which strengthen the known conditions for sub-regularity and extend the known conditions for bi-metric regularity to Bolza-type problems.