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Optimal Path (optimal + path)
Selected AbstractsPath finding under uncertaintyJOURNAL OF ADVANCED TRANSPORTATION, Issue 1 2005Anthony Chen Path finding problems have many real-world applications in various fields, such as operations research, computer science, telecommunication, transportation, etc. In this paper, we examine three definitions of optimality for finding the optimal path under an uncertain environment. These three stochastic path finding models are formulated as the expected value model, dependent-chance model, and chance-constrained model using different criteria to hedge against the travel time uncertainty. A simulation-based genetic algorithm procedure is developed to solve these path finding models under uncertainties. Numerical results are also presented to demonstrate the features of these stochastic path finding models. [source] Lindahl Pricing, Nonrival Infrastructure, and Endogenous GrowthJOURNAL OF PUBLIC ECONOMIC THEORY, Issue 4 2001Dipankar Dasgupta The paper constructs a model of endogenous growth where infrastructure is an accumulable stock generating a nonrival input service. A typical market economy cannot attain the socially optimum steady state path, since nonrivalry precludes competitive pricing of infrastructure. However, there exist agent specific prices for the infrastructural service, a price for the infrastructural stock, a rate of interest, and a subsidy for the representative household that can sustain the optimal path as a dynamic Lindahl equilibrium. The rates of return from physical and infrastructural capital equal the rate of interest. Investment programs are socially optimum. The government's budget is balanced. [source] Choices and Constraints over Retirement Income Streams: Comparing Rules and Regulations,THE ECONOMIC RECORD, Issue 2008HAZEL BATEMAN The new Simplified Superannuation regulations for Australian superannuation provide tax concessions to retirement income streams which comply with legislated minimum drawdown rules. We evaluate these new drawdown rules against four alternatives, including three formula-based ,rules of thumb' used by financial planners. We find that the new regulations are a substantial improvement on the previous rules for allocated pensions and, when compared with the formula-based rules, are a good compromise in terms of simplicity, adequacy and risk. We also find that welfare is lower for most individuals who follow the Simplified Superannuation rules compared with welfare under an optimal path or a simple fixed percentage drawdown rule, but that outcomes could be improved through a further simplification of the new rules. [source] Stable Optimal Cycles With Small Discounting in a Two-sector Discrete-time Model: A Non-bifurcation ApproachTHE JAPANESE ECONOMIC REVIEW, Issue 3 2001Harutaka TakahashiArticle first published online: 18 DEC 200 This paper presents a standard two-sector optimal growth model with general neoclassical production functions: strictly quasi-concave, twice continuously differentiable homogeneous of degree 1 functions. Instead of applying the standard local bifurcation theory, I exploit two well established properties in Turnpike Theory,"simple dynamics" and the Neighbourhood Turnpike, and, combining both results, I demonstrate that there exists an interval of the discount factor near 1 such that a corresponding optimal steady state is totally unstable and an optimal path converges asymptotically to a two-period cycle for a chosen discount factor in it. JEL Classification Numbers: O21, O41. [source] | ||||||||||