Viser treff 1-10 av 63
Harvesting in a Fishery with Stochastic Growth and a Mean-Reverting Price
(Journal article; Peer reviewed, 2014)
We analyze a continuous, nonlinear bioeconomic model to demonstrate how stochasticity in the growth of fish stocks affects the optimal exploitation policy when prices are stochastic, mean-reverting and possibly harvest ...
The Ensemble Kalman Filter for Multidimensional Bioeconomic Models
(Peer reviewed; Journal article, 2015)
A bridge between continuous and discrete-time bioeconomic models: Seasonality in fisheries
(Journal article; Peer reviewed, 2017)
We develop a discretization method to construct a discrete finite-time bioeconomic model, corresponding to bioeconomic models with continuous-time growth function, but allowing the analysis of seasonality in fisheries. The ...
Do species interactions and stochasticity matter to optimal management of multispecies fisheries?
(Discussion paper;2012:1, Working paper, 2012-01)
The multispecies fisheries management looks at a bigger picture in addressing the long-term consequences of present decisions. This implies an ecosystem management that includes a number of species and their physical, ...
A maximum entropy approach to the newsvendor problem with partial information
(Discussion paper;2011:14, Working paper, 2011-08)
In this paper, we consider the newsvendor model under partial information, i.e., where the demand distribution D is partly unknown. We focus on the classical case where the retailer only knows the expectation and variance ...
Stackelberg equilibria in a multiperiod vertical contracting model with uncertain and price-dependent demand
(Discussion paper;2012:2, Working paper, 2012-02)
In this paper, we consider Stackelberg games in a multiperiod vertical contracting model with uncertain demand. Demand has a distribution with a mean and variance that depend on the current retail price, and this ...
The ensemble Kalman filter in bioeconomics
(Discussion paper;2012:5, Working paper, 2012-05)
We demonstrate the power of the Ensemble Kalman Filter in specifying ecosystem models ideal for bioeconomic analysis. Bioeconomic analysis requires models to be relatively simple, but models must still capture the nature ...
Analyzing risk of stock collapse in a fishery under stochastic profit maximization
(Discussion paper;2012:4, Working paper, 2012-04)
In commercial fisheries, stock collapse is an intrinsic problem caused by overexploitation or due to pure stochasticity. To analyze the risk of stock collapse, we apply a relatively simple Monte Carlo approach which can ...
Approximating closed form solutions to a class of feedback policies
(Discussion paper2009:8, Working paper, 2009-09)
Dynamic optimization problems cover a large class of problems in theoretical and applied economics. A simple iterative algorithm with fast convergence is proposed. It is demonstrated that the algorithm in a few steps ...
A survey and analysis of outsourcing in East China
(Discussion paper2009:5, Working paper, 2009-05)
The aim of this study is to investigate whether outsourcing activities in east china are associated with a theoretical framework derived from the literature. By the methodology of Statistics Package for the Social Science ...