Results 51 to 60 of about 3,165 (265)

A Risk-Based Approach for Asset Allocation with A Defaultable Share

open access: yesRisks, 2018
This paper presents a novel risk-based approach for an optimal asset allocation problem with default risk, where a money market account, an ordinary share and a defaultable security are investment opportunities in a general non-Markovian economy ...
Yang Shen, Tak Kuen Siu
doaj   +1 more source

Stochastic Recursive Zero‐Sum Differential Game and Mixed Zero‐Sum Differential Game Problem [PDF]

open access: yesMathematical Problems in Engineering, 2012
Under the notable Issacs′s condition on the Hamiltonian, the existence results of a saddle point are obtained for the stochastic recursive zero‐sum differential game and mixed differential game problem, that is, the agents can also decide the optimal stopping time. The main tools are backward stochastic differential equations (BSDEs) and double‐barrier
Wei, Lifeng, Wu, Zhen
openaire   +2 more sources

Distinct Immunomodulatory Strategies Guide Mesenchymal Stromal/Stem Cell‐Mediated Bone Regeneration

open access: yesAdvanced Science, EarlyView.
Bone regeneration by mesenchymal stem cells is strongly influenced by immune signals. This study shows that priming stem cells with regulatory immune cells or an inflammation‐resolving lipid molecule enhances bone formation through distinct immune pathways.
Salwa Suliman   +5 more
wiley   +1 more source

Stochastic Differential Game Model Analysis of Emission-Reduction Technology Under Cost-Sharing Contracts in the Carbon Trading Market

open access: yesIEEE Access, 2020
Climate change and greenhouse gas emission reduction have become pressing concerns in recent years. Carbon trading systems and emission-reduction cost-sharing contracts are important emission-reduction measures, under the two mechanisms, this paper ...
Qiang Hou, Yue Guan, Shan Yu
doaj   +1 more source

Bioenergy Cropping Reduces the Spatiotemporal Scaling of Soil Bacterial Biodiversity

open access: yesAdvanced Science, EarlyView.
Consistent with patterns observed in plant and animal communities, soil bacterial communities exhibit significant species–time–area and phylogenetic–time–area relationships independent of nested structure. Bioenergy cropping significantly reduces the spatiotemporal scaling rates, particularly in sandy loam soils.
Zhencheng Ye   +19 more
wiley   +1 more source

Stubbornness as Control in Professional Soccer Games: A BPPSDE Approach

open access: yesMathematics
This paper defines stubbornness as an optimal feedback Nash equilibrium within a dynamic setting. Stubbornness is treated as a player-specific parameter, with the team’s coach initially selecting players based on their stubbornness and making ...
Paramahansa Pramanik
doaj   +1 more source

Ban Glyphosate—Does It Affect the Swedish Farmers' Willingness to Grow Cover Crops?

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The cultivation of cover crops is one of the new Eco‐scheme practices introduced in Sweden. This study examines how the design of policy attributes of these schemes influences farmers' willingness to grow cover crops on arable land, with particular focus on the potential impact of a glyphosate ban.
Vivian Wei Huang   +2 more
wiley   +1 more source

Differential Games of Cournot Oligopoly with Consideration of Pollution, Network Structure, and Continuous Updating

open access: yesGames
We have built and investigated analytically and numerically a differential game model of Cournot oligopoly with consideration of pollution, network structure, and continuous updating.
Guennady Ougolnitsky, Alexey Korolev
doaj   +1 more source

A Differential Game of Ecological Compensation Criterion for Transboundary Pollution Abatement under Learning by Doing

open access: yesDiscrete Dynamics in Nature and Society, 2020
This paper studies a stochastic differential game of transboundary pollution abatement between two kinds of ecological compensation and the abatement policy, in which the learning by doing is taken into account.
Zhigang Chen, Rongwei Xu, Yongxi Yi
doaj   +1 more source

Charting the Path to Increased Oil Palm Output in Ghana Beyond Area Expansion: Technology or Managerial Capacity — Which Leads the Way?

open access: yesAgribusiness, EarlyView.
ABSTRACT This study sets out to investigate the prospects for raising oil palm output in sub‐Saharan Africa, particularly Ghana, without further expansion of cropland. Given global concerns about oil palm's role in deforestation and land use change, the focus is on enhancing productivity on existing farmlands.
Jacob Asravor   +3 more
wiley   +1 more source

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