Results 91 to 100 of about 278,525 (306)

A Stochastic Bioeconomic Model with Research [PDF]

open access: yes
This paper provides an incremental extension of a stochastic renewable resource model (Pindyck 1984) to include population dynamics research; i.e., the rate of accrual of information regarding the stochastic evolution of the stock, as a dynamic choice ...
Herrera, Guillermo E., Jin, Di
core   +1 more source

Clathrate hydrate crystallization

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley   +1 more source

Data-driven optimization for modern urban logistics and transportation: modeling framework and applications

open access: yesUrban Lifeline
The rapid advancement of new technologies and the widespread availability of data have enabled new business paradigms in urban logistics and transportation.
Haitao Li
doaj   +1 more source

Fishing Capacity and Harvest Rules [PDF]

open access: yes
In this note we consider the choice of optimum fishing capacity for fish stocks that vary at random. In models with stochastic variations of fish stocks, optimum fishing capacity is normally a decision variable separate from fishing effort.
Hannesson, Rognvaldur
core   +1 more source

Asymptotic Power Utility-Based Pricing and Hedging

open access: yes, 2013
Kramkov and Sirbu (2006, 2007) have shown that first-order approximations of power utility-based prices and hedging strategies can be computed by solving a mean-variance hedging problem under a specific equivalent martingale measure and relative to a ...
Kallsen, Jan   +2 more
core   +1 more source

On subset least squares estimation and prediction in vector autoregressive models with exogenous variables

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract We establish the consistency and the asymptotic distribution of the least squares estimators of the coefficients of a subset vector autoregressive process with exogenous variables (VARX). Using a martingale central limit theorem, we derive the asymptotic normal distribution of the estimators. Diagnostic checking is discussed using kernel‐based
Pierre Duchesne   +2 more
wiley   +1 more source

Benchmarking the production of audit services: An efficiency frontier approach [PDF]

open access: yes
To compete effectively in an increasingly competitive audit market audit firms need information on the efficiency of the audit services they offer. This study reports on the cost and labor efficiency for a sample of 114 audit engagements conducted by one
Maijoor,S, Schelleman,C
core   +1 more source

Stochastic Modeling of Economic Injury Levels with Respect to Yearly Trends in Price Commodity [PDF]

open access: yesJournal of Insect Science, 2014
The economic injury level (EIL) concept integrates economics and biology and uses chemical applications in crop protection only when economic loss by pests is anticipated. The EIL is defined by five primary variables: the cost of management tactic per production unit, the price of commodity, the injury units per pest, the damage per unit injury, and ...
openaire   +3 more sources

Bayesian inverse ensemble forecasting for COVID‐19

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Variations in strains of COVID‐19 have a significant impact on the rate of surges and on the accuracy of forecasts of the epidemic dynamics. The primary goal for this article is to quantify the effects of varying strains of COVID‐19 on ensemble forecasts of individual “surges.” By modelling the disease dynamics with an SIR model, we solve the ...
Kimberly Kroetch, Don Estep
wiley   +1 more source

Fuzzy Stochastic Modeling in Financial Risk Assessment and Economic Predictions

open access: yesJournal of Posthumanism
The current studies are concerned with introducing fuzzy stochastic models in predicting economics and analyzing financial risk. One class of models that has found notable traction in this domain are fuzzy stochastic models (which combine the merits of fuzzy logic and stochastic processes) as flexible representations for the uncertainty (fuzziness) and
Anber Abraheem Shlash Mohammad   +7 more
openaire   +1 more source

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