Results 41 to 50 of about 14,044 (266)

Optimal mean-variance reinsurance and investment strategy with constraints in a non-Markovian regime-switching model

open access: yesStatistical Theory and Related Fields, 2020
This paper is devoted to study the proportional reinsurance/new business and investment problem under the mean-variance criterion in a continuous-time setting.
Liming Zhang, Rongming Wang, Jiaqin Wei
doaj   +1 more source

Optimal Portfolio Selection in an Itô–Markov Additive Market

open access: yesRisks, 2019
We study a portfolio selection problem in a continuous-time Itô–Markov additive market with prices of financial assets described by Markov additive processes that combine Lévy processes and regime switching models.
Zbigniew Palmowski   +2 more
doaj   +1 more source

Evaluation of fall‐seeded cover crops for grassland nesting waterfowl in eastern South Dakota

open access: yesWildlife Society Bulletin, EarlyView., 2023
Cover crops are experiencing a revival among Midwestern farmers, and we assessed their attractiveness and safety for nesting ducks in South Dakota. Nest success was markedly lower in cover crops than in perennial cover during both years of our study, including 2019 which was a best‐case scenario for cover crops, with extremely wet conditions delaying ...
Charles W. Gallman   +3 more
wiley   +1 more source

Investigating the Role of Human Capital and Shadow Economy in the Impact of Natural Resource Rent on Income Inequality with Regime Change [PDF]

open access: yesبرنامه‌ریزی و بودجه, 2023
Income inequality is a major problem in most countries, particularly the underdeveloped world. Unequal distribution of income weakens the achievement of sustainable global economic growth and acts as an impasse to achieve the goals of sustainable ...
Heshmatolah Asgari, Ali Moridian
doaj  

On Regime Switching Models

open access: yesMathematics
Regime switching models have been widely studied for their ability to capture the dynamic behavior of time series data and are widely used in economic and financial data analysis.
Zhenni Tan, Yuehua Wu
doaj   +1 more source

A Test of Using Markov-Switching GARCH Models in Oil and Natural Gas Trading

open access: yesEnergies, 2019
In this paper, we test the use of Markov-switching (MS) GARCH (MSGARCH) models for trading either oil or natural gas futures. Using weekly data from 7 January 1994 to 31 May 2019, we tested the next trading rule: to invest in the simulated commodity if ...
Oscar V. De la Torre-Torres   +2 more
doaj   +1 more source

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane   +3 more
wiley   +1 more source

Optimal Control of Stochastic Differential Delay Equations (SDDE) with Jumps and Markov Switching, and with an Application in Economics

open access: yesMathematics
This paper considers stochastic optimal control of stochastic differential delay equations (SDDEs) with jumps and Markov switching, and its economical applications.
Mariya Svishchuk, Anatoliy V. Swishchuk
doaj   +1 more source

Theory and Inference for a Markov Switching GARCH Model [PDF]

open access: yesSSRN Electronic Journal, 2007
Summary: We develop a Markov-switching GARCH model (MS-GARCH) wherein the conditional mean and variance switch in time from one GARCH process to another. The switching is governed by a hidden Markov chain. We provide sufficient conditions for geometric ergodicity and existence of moments of the process.
BAUWENS, Luc   +2 more
openaire   +5 more sources

Learning Highly Dynamic Skills Transition for Quadruped Jumping Through Constrained Space

open access: yesAdvanced Robotics Research, EarlyView.
A quadruped robot masters dynamic jumps through constrained spaces with animal‐inspired moves and intelligent vision control. This hierarchical learning approach combines imitation of biological agility with real‐time trajectory planning. Although legged animals are capable of performing explosive motions while traversing confined spaces, replicating ...
Zeren Luo   +6 more
wiley   +1 more source

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